VALERO – KROTZ SPRINGS
S.H.G # 55
Page 1 of 27
Issued 09/15/03
POST-FIRE PLANT AND EQUIPMENT CHECKOUT GUIDELINES
1.0
PURPOSE
To communicate recommended procedures for checking out equipment and facilities affected by
a fire prior to returning the facilities to operation. The guideline provides a checklist to ensure that
many potential problem areas that otherwise might not be addressed are adequately considered.
2.0
SCOPE
The provisions of this guideline will be applied to equipment and facilities affected by a substantial
fire, after the fire has been extinguished, the area appropriately decontaminated, and any required
incident investigation inspections have been completed. API RP-579, Fitness-for-Service
(especially Section 11, Assessment of Fire Damage), will be utilized in conjunction with the
provisions of this guidelines to ensure that equipment and facilities are adequate for their intended
and required services before being returned to operation or use after a major fire.
3.0
DEFINITIONS

Fitness Team Director: Person designated by management to manage and direct the
post-fire fitness-for-service investigation project.

Fitness Team I&E Manager: The person designated by management to oversee the
instrumentation and electrical system portions of the post-fire fitness-for-service
investigation project, reporting to the Fitness Director.

Fitness Team Safety Manager: The person designated by management to oversee the
fire and safety equipment portions of the post-fire fitness-for-service investigation project,
reporting to the Fitness Director.

Fitness Team Piping Manager: The person designated by management to oversee the
piping, valves, and fittings portion of the post-fire fitness-for-service investigation project,
reporting to the Fitness Director.

Fitness Team Rotating Equipment Manager: The person designated by management to
oversee the pumps, motors, mixers, compressors, and turbines portions of the post-fire
fitness-for-service investigation project, reporting to the Fitness Director.

Fitness Team Vessel Manager: The person designated by management to oversee the
pressure vessel, exchangers, boilers, heaters, incinerators, and tanks portions of the postfire fitness-for-service investigation project, reporting to the Fitness Director.

Fitness Team Civil Manager: The person designated by management to oversee the
buildings, foundations, structures and stacks, portion of the post-fire fitness-for-service
investigation project, reporting to the Fitness Director.
VALERO – KROTZ SPRINGS

4.0
S.H.G # 55
Page 2 of 27
Issued 09/15/03
Fitness Team Environmental Manager: The person designated by management to
oversee the environmental aspects of the post-fire fitness-for-service investigation project,
reporting to the Fitness Director.
RESPONSIBILITIES
Individual/Group
Refinery Manager and Direct Reports





Fitness Team Director


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

Assigned Responsibilities
Review the description of positions included in
this guideline and develop a Fitness Team
organization (Director and Managers) similar to
that described in the Definitions section. The
definitions should serve as rough guidelines:
management will combine or subdivide the
positions proposed in Definitions, in
consideration of the apparent extend and
nature of the damage.
Continually emphasize Safe Production as the
primary goal of the Fitness Team.
Staff the Fitness Team organization by
appointing a Director and Managers. The
Fitness Team Director and Managers need not
be Directors or Managers in their normal jobs.
Work with the Fitness Director and Managers
to determine additional team members required
below the Fitness Manager level.
Provide resources required (material and
personnel, internal and external) to staff and
support the Fitness Team’s mission.
Develop and maintain a work plan and
schedule for the investigations.
Work with Fitness Managers to define the
resources required for the investigations, and
work with management to provide the required
resources.
Be accountable for the completeness and
accuracy of the investigations, ensuring
utilization of the checklists (Attachments) and
adherence with all applicable codes and
standards, including API RP-579 (Fitness-forService, especially Section 11, Assessment of
Fire Damage).
Continually emphasize Safe Production as the
primary goal of the Fitness Team.
Accountable for preparation of a final report
detailing the findings of the investigations.
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 3 of 27
Issued 09/15/03
Individual/Group
Fitness Team Managers
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
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
Fitness Team Investigators


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Health, Safety and Environmental
Department Personnel

All Departments

All Employees and Contractors

Assigned Responsibilities
Oversee investigations into adequacy of
equipment and facilities within their scope of
responsibility for intended service, considering
all applicable standards and codes, as well as
API RP-579, Fitness-for-Service
Utilize and document use of and results of
appropriate checklists (see Attachments A-F).
Provide input to Fitness Team Director on
resources required (personnel and material)
Provide regular status reports to Fitness Team
Director.
Continually emphasize Safe Production as the
primary goal of the Fitness Team.
Ensure that investigations are thorough by
using the Checklist provided.
Assist in preparation of interim status reports
and Final Report as requested by Fitness
Team Director.
Perform fitness-for-service investigations as
directed by Fitness Team Managers and
Directors.
Provide input to Fitness Team Manager(s) on
resources required to complete the
investigations.
Maintain Safe Production as the primary goal of
the Fitness Team investigations. Ensure that all
work is performed safely. Participate in JSA's
on new jobs.
Assist in preparation of interim status reports
and Final Report as requested by Fitness
Team Director and Managers.
Provide environmental and safety technical
input to the Fitness Team members.
Provide personnel and/or materials to the
Fitness Team as required.
Advise a Fitness Team member of any
observed damage or fire effects.
VALERO – KROTZ SPRINGS
5.0
S.H.G # 55
Page 4 of 27
Issued 09/15/03
GUIDELINES

Provisions of all other SHG’s shall be observed while performing post fire investigations.

The proposed organization noted above should be considered as a starting point. The
actual Fitness Team Organization should be determined in consideration of the extent
and nature of the fire and the skills and experience of the people available to staff the
team, keeping the goal of achieving a thorough investigation in mind. Some of the
positions recommended may be combined, or further subdivided.

Areas of responsibility should be clearly determined and communicated. It should be clear
whether the Fitness team is expected to investigate only, or whether they will be
responsible for repairs as well.

The checklists provided may be modified to correspond to the organization, but care must
be taken not to compromise the thoroughness of the investigation. In any case, the
checklists should be carefully reviewed before commencing the fitness evaluation to
ensure that roles and responsibilities are understood and that the safety of the evaluators
and other personnel in the areas is protected during the evaluation.
5.1
Inspection And Testing


5.2
Sewers and Drains


5.3
Secure the scene and protect evidence and equipment for investigation. Remove
from the fire area, in a timely manner, any special samples needed for the postfire evaluation before the area is cleaned up for repair.
The sudden release of propane or butane from a line that has failed in a fire may
cause auto refrigeration of such liquid away from the fire area. Embrittlement or
cracking of certain metals in this area may result from severe cooling or from
water freezing.
Check the sewer system for hazardous materials from the fire. (Asbestos,
caustic, acid, hydrocarbons, explosive mixtures, etc.)
Are sewers in the fire area open? Should they be rerouted? Are there trenches
involved?
Opening Equipment



Make sure all liquids are drained from knockout drums and lines. After a fire,
liquids may be found where they don’t normally exist.
Be cautious in opening equipment due to hazards from chemicals, chemical
residues or ash that can run out or be present.
Be alert to the possibility of toxic or other reactive gas release when certain
materials or chemical storage equipment have been exposed to or consumed in
a fire. For example, certain plastics or similar materials have been known to
release hydrogen chloride, phosgene, etc., as a product of combustion or
reaction when burned.
VALERO – KROTZ SPRINGS

S.H.G # 55
Page 5 of 27
Issued 09/15/03
Alert for potential trapped hydrocarbons and/or toxics when cutting piping and/or
opening vessels for removal or repairs. Such equipment may be plugged, still
pressurized and quite hot. For example, the reactors of a Reformer may be
insulated internally and don’t dissipate heat to the outside wall, thus the outside
surface may feel quite cool while contents of the vessel may still be extremely
warm. Check that all equipment is open and clear of gases, liquids and solids at
intermediate upstream and downstream points.
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 6 of 27
Issued 09/15/03
ATTACHMENT A
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Instrumentation and Electrical
A1.
ELECTRICAL EQUIPMENT
A1.1
Firewater-Related Damage
A1.1.1 Check cable trays for water damage to wire/cable insulation.
A1.1.2 Check cable trays for hydrocarbon damage to wire/cable insulation.
A1.1.3 Check for water damage to motors in the fire and nearby.
A1.1.4 Identify and isolate electrical equipment that was sprayed with water during the fire.
A1.1.5 Check explosion-proof equipment enclosures for dryness.
A1.1.6 Check the electrical conduit and junction box systems for firewater that may have
been transmitted to remote areas. Electrical equipment that is moist needs to be
dried out. Equipment may not show material damage but can be a future hazard.
A1.1.7 In the winter, check for freezing water in conduits near the fire area.
A1.2
Heat-Related Damage
A1.2.1 Inspect for melted conduit.
A1.2.2 Spot check poured electrical seals around the fire area. Such seals may melt well
before damage to wire or other insulation becomes apparent.
A1.2.3 Spot check wiring outside the intense fire area to see if insulating characteristics
have been affected by radiation or conduction. “High pot” “Meggar” any suspect
electrical wiring or insulators.
A1.2.4 Check for damage to insulating sleeves (made of low melting point material) which
isolate bolts from flanges. Such damage can occur at temperatures as low as 180
F and can result in loss of cathodic protection for underground equipment.
A1.2.5 Check for damage to insulating flange components made of low melting point
material. This damage can occur at low heat levels and not be obvious. Loss of
protection from static electricity can result.
A1.3
Electrical Motors
A1.3.1 Check the following, where appropriate, when exposed to a fire:
A1.3.2 Transformers
A1.3.3 Switchgear
A1.3.4 Breakers and relays
A1.3.5 Power supplies at motor
A1.3.6 Space heaters
A1.3.7 Temperature detectors
A1.3.8 Auto shutdown control systems
A1.3.9 Variable speed drive control systems
A1.3.10 Megger motor for resistance to ground
A1.3.11 Bump motors after megging
A1.3.12 Tightness of bolts and screws on motor housing and bearing brackets.
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 7 of 27
Issued 09/15/03
ATTACHMENT A
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Instrumentation and Electrical
A1.4
Other items requiring checking when exposed to a fire:
A1.4.1 Test back-up power supplies (UPS systems) to confirm proper operation.
A1.4.2 Inspect local electrical ground connections for damage.
A1.4.3 De-energize battery-supplied power for switchgear control if pressurization of
switchgear house is lost during the fire.
A1.4.4 Consider replacing coaxial cable or unit cable in a fire area that served sensitive
equipment such as vibration monitors, analyzers, etc.
A1.4.5 Spot check electrical equipment connected to fire-damaged cables. Some
equipment might be damaged because of power supply surges during failure of
other equipment.
A1.4.6 Refer also to the section on “Turbines and Other Drivers”.
A2.
INSTRUMENTS
A2.1 Equipment with Radioactive Sources
A2.1.1 Check the integrity of all radioactive sources, equipment supports, and any
attached wiring or instrumentation.
A2.2 Instrument Integrity
A2.2.1 Prior to startup check that all process controls, instruments, alarms and shutdowns
functioned correctly during the fire.
A2.2.2 Review requirements for additional instrumentation based on review of the fire.
A2.2.3 Check integrity of safety interlock systems to insure correct operation.
A2.2.4 Check alarm systems control wiring for a zero-point offset.
A2.2.5 Check that conditions on equipment (i.e., pressure, temperature, levels, etc.) are
correct as shown on instruments in the control room. Fire damaged instruments
circuits will sometimes fail “as is”. Loop check all instruments in the fire area per
Valero specifications.
A2.2.6 Check and perform dry runs to instrument PLCs (Programmable Logic Controllers)
to be sure that such equipment has not been damaged by shorts or power surges.
A2.3 Plugging/Fouling
A2.3.1 Check orifice taps and fittings for leaks or plugging.
A2.3.2 Check electronic equipment to see if performance has been altered by unusually
high levels of soot, dust or moist air being drawn into HVAC (heating, ventilating,
and air conditioning) systems from the fire area.
A2.4 Other
A2.4.1 Pneumatic lines
A2.4.2 Check aluminum supports for distortion or melting
A2.4.3 Check Swagelock tubing fittings for leaks
A2.4.4 Pressure test pneumatic tubing per Valero specifications
A2.4.5 Look for broken pressure and level gauges in the fire area.
A2.4.6 Check valve actuator diaphragms and packing for fire damage due to heat.
A3.
Insulation & Fireproofing
A3.1
Inspect the fireproofing on cable trays above the fire area.
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 8 of 27
Issued 09/15/03
ATTACHMENT B
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Safety
B1.
FIRE AND SAFETY EQUIPMENT
B1.1
B1.2
B1.3
B1.4
B1.5
B1.6
B1.7
B1.8
B1.9
B2.
Check any deluge system over the fire for cracked or plugged nozzles.
Operate deluge systems after the fire to insure its proper operation.
Check safety showers, eye washes, fresh air equipment, and all fire systems and alarms
prior to startup.
Check all fire equipment that may need recharging prior to startup.
Survey to determine if the fire equipment (e.g., deluge systems, fire monitors, etc.) was in
the right place? Did they work properly? Is additional protection needed before startup?
After startup?
Promptly replace identification labels, tags or signs for lighting or electrical switches,
radioactive sources, hazardous chemicals, etc. that have been burned or damaged and
not legible.
Ensure that adequate supplies of breathing air and respiratory equipment are in the
appropriate areas.
Ensure gas and/or H2S monitors are reset and working properly.
Record any personal monitor readings within 24 hours of exposure.
AREA SAFETY
B2.1
On units that handle acids, check any standing water for low pH.
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 9 of 27
Issued 09/15/03
ATTACHMENT C
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Piping
C1.
CORROSION
C1.1
Creep - Check material exposed to temperatures above those listed for sagging or
dimension changes—replace if dimension change is greater than about 3%.
Temp (oF)
300
500
540
900
1,000
C1.2
Material
Lead
Aluminum alloys
Copper/copper alloys
Glass
Steels, stainless steels
Hardness - Materials exposed to temperatures higher than those listed below should be
checked for hardness. Hardness should meet original materials specification.
Temp (oF)
400
540
900
1,150
Material
Aluminum alloys
Copper/copper alloys
Low and high alloy steels
Precipitation hardened stainless steels
C1.3
Stainless Steel
C1.3.1 Check equipment normally requiring downtime protection for evidence of
polythionic stress corrosion cracking.
C1.3.2 Check for sensitization on equipment exposed to temperatures above 800 F.
Sensitization may affect corrosion resistance and downtime protection needs.
C1.3.3 Check for chloride cracking of equipment exposed to temperatures above 125oF
and firewater.
C1.3.4 Replace stainless steel castings that in-situ metallography determines have
Sigma phase embrittlement.
C1.4
Wet Insulation
C1.4.1 Consider removing wet insulation to prevent corrosion under weatherproofing on
steel equipment and chloride cracking of stainless steel equipment.
C1.4.2 Check for chloride cracking under wet insulation covering stainless steel that was
operating or exposed to temperatures above 125oF.
C1.4.3 Liquid Metal Embrittlement
C1.4.4 Check for liquid metal embrittlement of equipment near or below melted
aluminum or zinc components or galvanizing. Replace any equipment, which has
experienced liquid metal embrittlement.
C1.5
Acids
C1.5.1 On units that handle acids, check any standing water for low pH.
C1.5.2 On alkylation units, replace bolting exposed to the acids because of leaks or
spills.
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 10 of 27
Issued 09/15/03
ATTACHMENT C
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Piping
C1.5.3 Inspect any part of a system that might have seen acid carry-over during the fire
for corrosion damage.
C1.5.4 Caustic/Alkaline
C1.5.5 Check carbon steel equipment in caustic service that saw temperatures greater
than 120 F during the fire for caustic cracking.
C1.6
C2.
Miscellaneous
C1.6.1 Check for thermal shock cracking of heavy castings, e.g., furnace headers that
may been hit (quenched) with a firewater stream.
C1.6.2 If ultrasonic inspection reveals pipe or furnace tube walls are significantly
different than original, look for internal melting or external oxidation.
C1.6.3 Check acid lines subjected to high temperatures for increased corrosion and/or
plugging.
C1.6.4 Check other chemical lines (ex., caustic and amines) for concentration effects
such as precipitation, plugging or residues.
C1.6.5 Determine if other additives such as inhibitors, antifoulants, demulsifiers, etc.,
may become inactive or not perform as effectively if overheated.
INSULATION/ FIREPROOFING
C2.1
Oil-Soaked Insulation
C2.1.1 Replace insulation that has been soaked with oil.
C2.1.2 Check for hydrocarbon pick-up in fibrous insulation. Replace, otherwise
spontaneous combustion is possible on start-up.
C2.2
Wet Insulation
C2.2.1 Replace wet insulation on stainless steel equipment to prevent chloride stress
corrosion cracking and from steel equipment to prevent corrosion.
C2.2.2 Check for water damage to insulation outside the immediate fire area.
C2.3
Fireproofing
C2.3.1 Test concrete (structural and fireproofing) for mechanical soundness by:
C2.3.1.1
Coring and testing
C2.3.1.2
Schmidt hammer
C2.3.1.3
Velocity meter testing
C2.3.2 Replace as required.
C2.3.3 Wet Refractory
C2.3.3.1
Look for water and/or freezing damage under refractory linings.
C2.3.3.2
Modify the unit startup procedures to account for wet refractory.
C2.4
Asbestos
C2.4.1 Identify areas where materials are made of asbestos. Follow company guidelines
for handling, encapsulation, and/or removal as appropriate.
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 11 of 27
Issued 09/15/03
ATTACHMENT C
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Piping
C2.5
C3.
MATERIAL FORMING AND FABRICATION
C3.1
C3.2
C4.
Check for material weldability - hardness, copper, slag, weld area cleanliness, etc., before
welding.
Document all substitute materials and temporary facilities installed with a timetable and
method for replacement.
GENERAL
C4.1
C4.2
C4.3
C5.
Other
C2.5.1 Check effect of fire on insulation under stainless steel jackets. Mineral wool,
foam glass, and glass fiber type-materials could be partially melted.
C2.5.2 Check for correct insulation thickness when re-insulating Reformer reactors to
prevent reactor shell overheating.
Check cast iron equipment for cracking.
Are grounding straps/lightning arrestors still intact and functional?
Verify that curbing/diking needed to contain spills or leaks is functional, e.g., curbing on
alkylation units.
PIPING/VALVES
C5.1
C5.2
Are up-to-date drawings used to reconstruct the unit? Are they the latest version?
Spot check piping, welds (especially chrome welds), valves, bolts and flanges in fringe
areas adjacent to the major fire area for hardness, softness, or warpage.
C5.3 Check for high stress areas caused by thermal expansion or contraction, especially
elbows.
C5.4 Check spring hangers involved in the fire for relaxation, cold set, hot set, and galvanized
corrosion protection.
C5.5 Inspect piping supports to be sure that they are still carrying the load.
C5.6 Check for piping strain and misalignment on rotating equipment and at expansion joints.
C5.7 Check the operation of valve wheels and chains. Repack affected valves and change
gaskets on bonnets and flanges where needed. Replace internal parts made of low
melting-point materials.
C5.8 Carbon steel gasketing in 5-7 percent chrome valves can be a cause of post-fire failures.
Be sure all replacement valves have internal gasketing that meets Valero’s specifications.
C5.9 Check that seals or rupture disks, which are often Teflon coated, have not been destroyed
from even short exposure to a fire area.
C5.10 Shop-test relief valves, replace rupture discs, and inspect the piping going to and from the
relief valve for pluggage.
C5.11 Check instrument air lines to control valves for leakage. Check orifice taps and fittings for
leaks or plugging.
C5.12 Check for heat damage to packing or 0-rings made of Teflon or other materials that are
not as heat resistant as the equipment in which they are located.
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 12 of 27
Issued 09/15/03
ATTACHMENT C
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Piping
C5.13 In freezing conditions, check steam tracing for proper operation. Check dormant water
lines, steam traps, etc. for freeze damage.
C5.14 Be alert for plugged valves and piping, upset reactor beds, loose coke and scale,
unexpected pockets of hydrocarbons, and catalyst carryover.
C5.15 Spot check piping in fringe fire areas for coking or cracking via radiographs, dye tests, or
other non-destructive techniques.
C5.16 Check bolts in flanges, valve bonnets, etc. for stress relaxation and replace with bolts of
the proper material, if needed. Check associated flanges for warpage.
C6.
PROTECTIVE COATINGS
C6.1
C6.2
Nonmetallic
C6.1.1 Check to insure integrity of acid resistant coating/mastics on duct work, furnace
shells and/or stacks for melting.
C6.1.2 Inspect exterior coatings for signs of thermal degradation.
C6.1.3 Inspect vessel/pipe internal protective coatings (epoxy, mastic, plastic, etc.) for
melting.
C6.1.4 Test Teflon coated sleeve plug and gate valves for shut-off capability.
C6.1.5 Check the lining and flange surfaces of coated pipe used in acid service for
damage (melting, extrusion, etc.).
Lead Linings
C6.2.1 Inspect lead linings for sagging or melting.
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 13 of 27
Issued 09/15/03
ATTACHMENT D
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Rotating Equipment
D1.
CORROSION
D1.1
Creep - Check material exposed to temperatures above those listed for sagging or
dimension changes—replace if dimension change is greater than about 3%.
Temp (oF)
300
600
540
950
1,000
D1.2
Material
Lead
Aluminum alloys
Copper/copper alloys
Glass
Steels, stainless steels
Hardness - Materials exposed to temperatures higher than those listed below should be
checked for hardness. Hardness should meet original materials specification.
Temp (oF)
400
540
900
1,150
Material
Aluminum alloys
Copper/copper alloys
Low and high alloy steels
Precipitation hardened stainless steels
D1.2.1 Pedestal hardness checks and magnetic particle inspection
D1.3
Electrical Motors
D1.3.1 Bearings and seals
D1.3.2 Oil supply systems (or grease)
D1.3.3 Coupling and shaft alignment
D1.4
Stainless Steel
D1.4.1 Check equipment normally requiring downtime protection for evidence of
polythionic stress corrosion cracking.
D1.4.2 Check for sensitization on equipment exposed to temperatures above 800 F.
Sensitization may affect corrosion resistance and downtime protection needs.
D1.4.3 Check for chloride cracking of equipment exposed to temperatures above 125 oF
and firewater.
D1.4.4 Replace stainless steel castings that insitu metallography determines have
Sigma phase embrittlement.
D1.5
Wet Insulation
D1.5.1 Consider removing wet insulation to prevent corrosion under weatherproofing on
steel equipment and chloride cracking of stainless steel equipment.
D1.5.2 Check for chloride cracking under wet insulation covering stainless steel that was
operating or exposed to temperatures above 125 oF.
D1.5.3 Liquid Metal Embrittlement
D1.5.4 Check for liquid metal embrittlement of equipment near or below melted
aluminum or zinc components or galvanizing. Replace any equipment that has
experienced liquid metal embrittlement.
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 14 of 27
Issued 09/15/03
ATTACHMENT D
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Rotating Equipment
D2.
D1.6
Acids
D1.6.1 On units that handle acids, check any standing water for low pH.
D1.6.2 On alkylation units, replace bolting exposed to the acids because of leaks or
spills.
D1.6.3 Inspect any part of a system that might have seen acid carry-over during the fire
for corrosion damage.
D1.6.4 Caustic/Alkaline
D1.6.5 Check carbon steel equipment in caustic service that saw temperatures greater
than 120o F during the fire for caustic cracking.
D1.7
Miscellaneous
D1.7.1 Check for thermal shock cracking of heavy castings, e.g., furnace headers that
may been hit (quenched) with a firewater stream.
D1.7.2 If ultrasonic inspection reveals pipe or furnace tube walls are significantly
different than original, look for internal melting or external oxidation.
D1.7.3 Check acid lines subjected to high temperatures for increased corrosion and/or
plugging.
D1.7.4 Check other chemical lines (ex.: caustic and amines) for concentration effects
such as precipitation, plugging or residues.
D1.7.5 Determine if other additives such as inhibitors, antifoulants, demulsifiers, etc.,
may become inactive or not perform as effectively if overheated.
INSPECTION AND TESTING
D2.1
D2.2
D3.
Remove from the fire area, in a timely manner, any special samples needed for the
post-fire evaluation before the area is cleaned for repair.
The sudden release of propane or butane from a line that has failed in a fire may cause
auto refrigeration of such liquid away from the fire area. Embrittlement or cracking of
certain metals in this area may result from severe cooling or from water freezing.
INSULATION/ FIREPROOFING
D3.1
Oil-Soaked Insulation
D3.1.1 Replace insulation that has been soaked with oil.
D3.1.2 Check for hydrocarbon pick-up in fibrous insulation. Replace, otherwise
spontaneous combustion is possible on start-up.
D3.2
Wet Insulation
D3.2.1 Replace wet insulation on stainless steel equipment to prevent chloride stress
corrosion cracking and from steel equipment to prevent corrosion.
D3.2.2 Check for water damage to insulation outside the immediate fire area.
D3.3
Fireproofing
D3.3.1 Test concrete (structural and fireproofing) for mechanical soundness by:
D3.3.2 Coring and testing
D3.3.3 Schmidt hammer
D3.3.4 Velocity meter testing
VALERO – KROTZ SPRINGS
S.H.G # 55
Page 15 of 27
Issued 09/15/03
ATTACHMENT D
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Rotating Equipment
D4.
D3.4
D3.5
Replace as required.
Wet Refractory
D3.5.1 Look for water and/or freezing damage under refractory linings.
D3.5.2 Modify the unit startup procedures to account for wet refractory.
D3.6
Asbestos
D3.6.1 Identify areas where materials are made of asbestos. Follow company guidelines
for handling, encapsulation, and/or removal as appropriate.
D3.7
Other
D3.7.1 Check effect of fire on insulation under stainless steel jackets. Mineral wool,
foam glass, and glass fiber type-materials could be partially melted.
D3.7.2 Check for correct insulation thickness when re-insulating Reformer reactors to
prevent reactor shell overheating.
MATERIAL FORMING AND FABRICATION
D4.1
D4.2
D5.
GENERAL
D5.1
D5.2
D5.3
D6.
Check cast iron equipment for cracking.
Are grounding straps/lightning arrestors still intact and functional?
Verify that curbing/diking needed to contain spills or leaks is functional, e.g., curbing on
alkylation units.
PROTECTIVE COATINGS
D6.1
D6.2
D7.
Check for material weldability before welding (hardness, copper, slag, weld area
cleanliness, etc.).
Document all substitute materials and temporary facilities installed with a timetable and
method for replacement.
Nonmetallic
D6.1.1 Check to insure integrity of acid resistant coating/mastics on duct work, furnace
shells and/or stacks for melting.
D6.1.2 Inspect exterior coatings for signs of thermal degradation.
D6.1.3 Inspect vessel/pipe internal protective coatings (epoxy, mastic, plastic, etc.) for
melting.
D6.1.4 Test Teflon coated sleeve plug and gate valves for shut-off capability.
D6.1.5 Check the lining and flange surfaces of coated pipe used in acid service for
damage (melting, extrusion, etc.).
Lead Linings
D6.2.1 Inspect lead linings for sagging or melting.
PUMPING EQUIPMENT
D7.1
Any pump and driver involved in a fire or located very near a fire should be pulled and
thoroughly inspected, cleaned and reassembled.
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Page 16 of 27
Issued 09/15/03
ATTACHMENT D
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Rotating Equipment
D7.2
Lube and Seal Oil Systems
D7.2.1 Thoroughly recondition lube and seal oil systems near a fire. Flush and refill with
fresh oil. Check all instrumentation and alarms/shutdowns.
D7.2.2 Verify proper operation of the auxiliary pump on loss of oil pressure.
D7.2.3 Mechanically clean all seal or lube oil piping going through a fire area. Even if
not seriously damaged, low flow rates in this small piping can overheat the oil
and form deposits inside. Future problems with plugging and maintaining an
adequate supply of oil can result.
D7.2.4 Install new oil filters.
D7.2.5 Check the cooling water flow through exchangers and flow control systems.
D7.2.6 Check for piping distortion and proper slope.
D7.3
Piping
D7.3.1 Check for piping strain from piping involved in the fire area.
D7.3.2 Check for piping strain on equipment nearby but not in the fire area. The
expansion of connecting piping may cause stresses and rubbing of rotating parts
in pumping equipment. Piping modifications may be necessary.
D7.4
Foundations
D7.4.1 Inspect foundations of pumping equipment for mechanical soundness.
D7.4.2 Check the tightness of all foundation anchor bolts.
D7.4.3 See “Foundations and Substructures”.
D7.5
Other Items
D7.5.1 Pump cases exposed to relatively high temperatures are susceptible to
hardening and cracking. Have them dye-checked or mag-particle tested.
D7.6
Specific Equipment
D7.6.1 Check the following, where appropriate, when exposed to a fire:
D7.6.1.1
Centrifugal Pumps
D7.6.1.1.1
Mechanical seals
D7.6.1.1.2
Seal flush systems
D7.6.1.1.3
Vibration monitoring systems
D7.6.1.2
Reciprocating Pumps
D7.6.1.2.1
Relief valves
D7.6.1.2.2
Diaphragms
D7.6.1.2.3
Elastomers, seals
D7.6.1.3
Blowers
D7.6.1.3.1
Temperature detectors
D7.6.1.4
Reciprocating Compressors and Gas Engines
D7.6.1.4.1
Heads
D7.6.1.4.2
Valves
D7.6.1.4.3
Temperature detectors
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Page 17 of 27
Issued 09/15/03
ATTACHMENT D
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Rotating Equipment
D7.6.1.4.4
D7.6.1.4.5
D7.6.1.4.6
D7.6.1.4.7
D7.6.1.4.8
D7.6.1.4.9
Distance piece studs and nuts, tightness
Electrical system
Speed control system
Auto shutdown devices and controls
Piping and bottle supports
Turbochargers on gas engines
D7.6.1.5
Axial and Centrifugal Compressors
D7.6.1.5.1
Case guide keys
D7.6.1.5.2
Temperature and pressure detectors
D7.6.1.5.3
Gas flow control systems
D7.6.1.5.4
Auto shutdown control systems
D7.6.1.5.5
Inlet guide vane (IGV) control systems
D8.
TURBINES AND OTHER DRIVERS
D8.1
Any pump and driver involved in a fire or very near should be pulled and thoroughly
inspected, cleaned and reassembled.
D8.2
Lube and Seal Oil Systems
D8.2.1 Thoroughly recondition lube and seal oil systems near a fire. Flush and refill with
fresh oil. Check all instrumentation and alarms/shutdowns.
D8.2.2 Verify proper operation of the auxiliary pump on loss of oil pressure.
D8.2.3 Mechanically clean all seal and/or lube oil piping going through a fire area. Even
if not seriously damaged, low flow rates in this small piping can overheat the oil
and form deposits inside. Future problems with plugging and maintaining an
adequate supply of oil can result.
D8.2.4 Install new oil filters.
D8.2.5 Check the cooling water flow through exchangers and flow control systems.
D8.2.6 Check for piping distortion and proper slope.
D8.3
Piping
D8.3.1 Check for piping strain from piping involved in the fire area.
D8.3.2 Check for piping strain on equipment nearby but not in the fire area. The
expansion of connecting piping may cause stresses and rubbing of rotating parts
in pumping equipment. Piping modifications may be necessary.
D8.4
Foundations
D8.4.1 Inspect foundations of driving equipment for mechanical soundness.
D8.4.2 Check the tightness of all foundation anchor bolts.
D8.4.3 See “Foundations and Substructures”.
Alignment and Couplings
D8.5.1 Check for equipment misalignment due to any irreversible thermal reaction of the
concrete foundations.
D8.5
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Issued 09/15/03
ATTACHMENT D
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Rotating Equipment
D8.5.2 Examine all equipment baseplates for possible warpage as a result of bing in or
near a fire. A trained rotating equipment specialist may discover warpage that is
not always obvious to others.
D8.5.3 Inspect all couplings in or near a fire for damage and grease condition.
D8.5.4 After checking the piping and foundations, check the shaft alignments of all
rotating equipment near the fire area.
D8.5.5 Remove driving equipment located in the fire area from their baseplates and
check the pedestals with a machinist’s level for alignment and level.
D8.6
Other Items
D8.6.1 Check for thermally-warped shafts on driving equipment in the fire.
D8.6.2 Bearing housings and cases exposed to relatively high temperatures are
susceptible to hardening and cracking. Have them dye-checked or magparticle
tested.
D8.7
Specific Equipment.
D8.7.1 Check the following, where appropriate, when exposed to a fire:
D8.7.1.1
Electric Motors
D8.7.1.2
Transformers
D8.7.1.3
Switchgear
D8.7.1.4
Breakers and relays
D8.7.1.5
Power supplies at motor
D8.7.1.6
Space heaters
D8.7.1.7
Temperature detectors
D8.7.1.8
Bearings and seals
D8.7.1.9
Oil supply systems (or grease)
D8.7.1.10
Foundation
D8.7.1.11
Pedestal hardness checks and magnetic particle inspection
D8.7.1.12
Coupling and shaft alignment
D8.7.1.13
Auto shutdown control systems
D8.7.1.14
Variable speed drive control systems
D8.7.1.15
Megger motor for resistance to ground
D8.7.1.16
Bump motors after meggering
D8.7.1.17
Tightness of bolts and screws on motor housing and bearing
brackets
D8.8
V-Belt Drives
D8.8.1 Inspect and replace belts
D8.8.2 Check sheave alignment
D8.9
Steam Turbines
D8.9.1 Piping distortion and alignment
D8.9.2 Piping supports
D8.9.3 Speed control systems
D8.9.4 Overspeed trip systems
D8.9.5 Admission and extraction steam control systems
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Issued 09/15/03
ATTACHMENT D
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Rotating Equipment
D8.9.6
D8.9.7
D8.9.8
D8.9.9
D8.9.10
D8.9.11
sealing steam control systems
Turning gear control system
Trip and throttle valve control systems
Check for steam leaks
Inspect casing guide keys
Foundation
D8.10 Turboexpanders
D8.10.1
Flow control systems
D8.10.2
Auto shutdown control systems
D8.10.3
Safety shutdown valve
D8.10.4
Seal gas systems
D8.10.5
Foundation
D8.11 Gas Turbines
D8.11.1
D8.11.2
D8.11.3
D8.11.4
D8.11.5
Fuel gas control systems
Inlet guide vane (IGV) control system
Uninterruptible power supply (UPS) system
Fire protection systems
Air inlet filters
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Issued 09/15/03
ATTACHMENT E
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Vessels
E1.
CORROSION
E1.1
Creep - Check material exposed to temperatures above those listed for sagging or
dimension changes—replace if dimension change is greater than about 3%.
Temp (oF)
300
500
540
950
1,000
E1.2
Material
Lead
Aluminum alloys
Copper/copper alloys
Glass
Steels, stainless steels
Hardness - Materials exposed to temperatures higher than those listed below should be
checked for hardness. Hardness should meet original materials specification.
Temp (oF)
400
540
900
1,150
Material
Aluminum alloys
Copper/copper alloys
Low and high alloy steels
Precipitation hardened stainless steels
E1.3
Stainless Steel
E1.3.1 Check equipment normally requiring downtime protection for evidence of
polythionic stress corrosion cracking.
E1.3.2 Check for sensitization on equipment exposed to temperatures above 800 F.
Sensitization may affect corrosion resistance and downtime protection needs.
E1.3.3 Check for chloride cracking of equipment exposed to temperatures above 125oF
and firewater.
E1.3.4 Replace stainless steel castings that in-situ metallography determines have
Sigma phase embrittlement.
E1.4
Wet Insulation
E1.4.1 Consider removing wet insulation to prevent corrosion under weatherproofing on
steel equipment and chloride cracking of stainless steel equipment.
E1.4.2 Check for chloride cracking under wet insulation covering stainless steel that was
operating or exposed to temperatures above 125oF.
E1.4.3 Liquid Metal Embrittlement
E1.4.4 Check for liquid metal embrittlement of equipment near or below melted
aluminum or zinc components or galvanizing. Replace any equipment that has
experienced liquid metal embrittlement.
E1.5
Acids
E1.5.1 On units that handle acids, check any standing water for low pH.
E1.5.2 On alkylation units, replace bolting exposed to the acids because of leaks or
spills.
E1.5.3 Inspect any part of a system that might have seen acid carry-over during the fire
for corrosion damage.
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ATTACHMENT E
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Vessels
E1.5.4 Caustic/Alkaline
E1.5.5 Check carbon steel equipment in caustic service that saw temperatures greater
than 120o F during the fire for caustic cracking.
E1.6
E2.
INSPECTION AND TESTING
E2.1
E2.2
E3.
Miscellaneous
E1.6.1 Check for thermal shock cracking of heavy castings, e.g., furnace headers that
may been hit (quenched) with a firewater stream.
E1.6.2 If ultrasonic inspection reveals pipe or furnace tube walls are significantly
different than original, look for internal melting or external oxidation.
E1.6.3 Check acid lines subjected to high temperatures for increased corrosion and/or
plugging.
E1.6.4 Check other chemical lines (ex.: caustic and amines) for concentration effects
such as precipitation, plugging or residues.
E1.6.5 Determine if other additives such as inhibitors, antifoulants, demulsifiers, etc.,
may become inactive or not perform as effectively if overheated.
Remove from the fire area, in a timely manner, any special samples needed for the
post-fire evaluation before the area is cleaned for repair.
The sudden release of propane or butane from a line that has failed in a fire may cause
auto refrigeration of such liquid away from the fire area. Embrittlement or cracking of
certain metals in this area may result from severe cooling or from water freezing.
INSULATION/ FIREPROOFING
E3.1
Oil-Soaked Insulation
E3.1.1 Replace insulation that has been soaked with oil.
E3.1.2 Check for hydrocarbon pick-up in fibrous insulation. Replace, otherwise
spontaneous combustion is possible on start-up.
E3.2
Wet Insulation
E3.2.1 Replace wet insulation on stainless steel equipment to prevent chloride stress
corrosion cracking and from steel equipment to prevent corrosion.
E3.2.2 Check for water damage to insulation outside the immediate fire area.
E3.3
Fireproofing
E3.3.1 Test concrete (structural and fireproofing) for mechanical soundness by:
E3.3.2 Coring and testing
E3.3.3 Schmidt hammer
E3.3.4 Velocity meter testing
E3.3.2 Replace as required.
E3.3.3 Wet Refractory
E3.3.3.1 Look for water and/or freezing damage under refractory linings.
E3.3.3.2 Modify the unit startup procedures to account for wet refractory.
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Page 22 of 27
Issued 09/15/03
ATTACHMENT E
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Vessels
E4.
E3.4
Asbestos
E3.4.1 Identify areas where materials are made of asbestos. Follow company guidelines
for handling, encapsulation, and/or removal as appropriate.
E3.5
Other
E3.5.1 Check effect of fire on insulation under stainless steel jackets. Mineral wool,
foam glass, and glass fiber type-materials could be partially melted.
E3.5.2 Check for correct insulation thickness when re-insulating Reformer reactors to
prevent reactor shell overheating.
MATERIAL FORMING AND FABRICATION
E4.1
E4.2
E5.
GENERAL
E5.1
E5.2
E5.3
E6.
E7.
Check for material weldability - hardness, copper, slag, weld area cleanliness, etc.,
before welding.
Document all substitute materials and temporary facilities installed with a timetable and
method for replacement.
Check cast iron equipment for cracking.
Are grounding straps/lightning arrestors still intact and functional?
Verify that curbing/diking needed to contain spills or leaks is functional, e.g., curbing on
alkylation units.
PROTECTIVE COATINGS
E6.1
Nonmetallic
E3.5.3 Check to insure integrity of acid resistant coating/mastics on duct work, furnace
shells and/or stacks for melting.
E3.5.4 Inspect exterior coatings for signs of thermal degradation.
E3.5.5 Inspect vessel/pipe internal protective coatings (epoxy, mastic, plastic, etc.) for
melting.
E3.5.6 Test Teflon coated sleeve plug and gate valves for shut-off capability.
E3.5.7 Check the lining and flange surfaces of coated pipe used in acid service for
damage (melting, extrusion, etc.).
E6.2
E6.3
Lead Linings
Inspect lead linings for sagging or melting.
VESSELS
E7.1
E7.2
E7.3
E7.4
E7.5
Be aware of potential false levels of hydrocarbons in vessels to be opened. Ensure that
vessels are truly hydrocarbon free before entering.
Check foundation and grouting for damage.
Check the skirt for damage. Remove fireproofing as necessary.
Check the vessel for out-of-plumb (leaning).
Replace site and gauge glasses that were exposed to high temperatures.
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ATTACHMENT E
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Vessels
E7.6
E7.7
E7.8
E7.9
E7.10
Check manway and nozzle bolts for stress relaxation.
Inspect all nuclear sources on level detectors for damage.
Shop-test relief valves.
Check for catalyst degradation due to fire.
Spot-check tower internals and catalyst beds for possible upset as a result of being
shutdown suddenly, even if the equipment was not directly involved in the fire.
E7.11 Check the vessel for internal blistering, bulges, disbonding of liners, and cracking.
Consider insitu metallography. Vessels containing wet hydrogen sulfide, amine, caustic,
and acid are susceptible to cracking.
E8.
TANKS, STORAGE
E8.1
Level Measurement
E8.1.1 Replace sight gauge glasses exposed to the fire or high heat.
E8.1.2 Verify proper level gauge operation. Make sure the piping is not plugged or
located in a sludge layer.
E8.2
Sample Points
E8.2.1 Check sample points in the fire area for pluggage or coking.
E8.3
Miscellaneous
E8.3.1 Check that the floating roof is operational.
E8.3.2 Inspect tanks in caustic service for stress cracking.
E8.3.3 Check tank base ring for any thermal expansion damage.
E8.3.4 Determine if acid carryover was possible into the tank.
E8.3.5 Check that the nitrogen blanketing system is operational.
E8.3.6 Test the firewater deluge system.
E8.3.7 Check primary/secondary seals for damage to tanks near the fire area.
E8.3.8 Check tank nozzles and adjoining tank shell area. They may have been
overstressed due to thermal expansion of the tank and/or connected piping.
E8.3.9 Check fiberglass or coated chemical storage tanks for coating loss or damage.
Exposure to only modest temperatures may cause loss of external strength or
corrosion protection.
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Issued 09/15/03
ATTACHMENT F
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Civil
F1.
BUILDINGS
F1.1
F1.2
F1.3
F1.4
F1.5
F1.6
F1.7
F2.
FOUNDATIONS AND SUBSTRUCTURES
F2.1
Grouting
F2.1.1 Check foundations for loss of bond between the grout and concrete.
F2.2
Cracks (Major Damage)
F2.2.1 Inspect foundations for cracks and other damage due to metal thermal
expansion of anchor bolts, baseplates, rebar, etc. Water can enter causing
future corrosion of the metal and severe cracking of the concrete.
F2.2.2 Inspect structural concrete or similar fireproofing for hairline cracks where water
can enter and cause future corrosion of the metal and severe cracking of the
concrete or fireproofing.
Foundation
F2.3
F2.4
F2.5
F3.
Any “safe haven” building exposed to the fire should be inspected to insure it still meets
the “safe haven” criteria.
Check for friable asbestos and/or transite siding, including integrity of panel fasteners.
Watch for water and/or ice buildup on flat roofs for firefighting personnel safety and roof
loadings.
Check buildings for any cracked glass in windows, including elevated windows, which
could be a safety hazard.
Check the electrical supply to buildings that could pose an electrocution hazard.
Check metal roof beams for deformation and heat damage.
Check cinder block walls for cracking and embrittlement.
Heat Damage
F2.4.1 Check concrete in the periphery of a fire area for loss of strength. Such loss is
not always obvious. Concrete may spall when subjected to high temperatures.
Bolting
F2.5.1 Check the tightness of baseplate and foundation anchor bolts that may have
loosened up during the fire.
INSULATION/ FIREPROOFING
F3.1
Oil-Soaked Insulation
F3.1.1 Replace insulation that has been soaked with oil.
F3.1.2 Check for hydrocarbon pick-up in fibrous insulation. Replace, otherwise
spontaneous combustion is possible on start-up.
F3.2
Wet Insulation
F3.2.1 Replace wet insulation on stainless steel equipment to prevent chloride stress
corrosion cracking and from steel equipment to prevent corrosion.
F3.2.2 Check for water damage to insulation outside the immediate fire area.
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ATTACHMENT F
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Civil
F3.3
Fireproofing
F3.3.1 Test concrete (structural and fireproofing) for mechanical soundness by:
F3.3.1.1
Coring and testing
F3.3.1.2
Schmidt hammer
F3.3.1.3
Velocity meter testing
F3.3.2 Replace as required.
F3.3.3 Wet Refractory
F3.3.3.1
Look for water and/or freezing damage under refractory linings.
F3.3.3.2
Modify the unit startup procedures to account for wet refractory.
F3.4
Asbestos
F3.4.1.1
Identify areas where materials are made of asbestos. Follow company
guidelines for handling, encapsulation, and/or removal as appropriate.
F3.5
Other
F3.5.1.1
Check effect of fire on insulation under stainless steel jackets. Mineral
wool, foam glass, and glass fiber type-materials could be partially melted.
F3.5.1.2
Check for correct insulation thickness when re-insulating Reformer
reactors to prevent reactor shell overheating.
F4.
GENERAL
F4.1
F4.2
F4.3
F5.
F6.
Check cast iron equipment for cracking.
Are grounding straps/lightning arrestors still intact and functional?
Verify that curbing/diking/area paving needed to contain spills or leaks is functional, e.g.,
curbing on alkylation units.
PROTECTIVE COATINGS
F5.1
Nonmetallic
F5.1.1 Check to insure integrity of acid resistant coating/mastics on duct work, furnace
shells and/or stacks for melting.
F5.1.2 Inspect exterior coatings for signs of thermal degradation.
F5.1.3 Inspect vessel/pipe internal protective coatings (epoxy, mastic, plastic, etc.) for
melting.
F5.1.4 Test Teflon coated sleeve plug and gate valves for shut-off capability.
F5.1.5 Check the lining and flange surfaces of coated pipe used in acid service for
damage (melting, extrusion, etc.).
F5.2
Lead Linings
F5.2.1 Inspect lead linings for sagging or melting.
STACKS
F6.1
Check integrity of stack liners.
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Issued 09/15/03
ATTACHMENT F
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Civil
F6.2
F6.3
F6.4
F6.5
F7.
STRUCTURES
F7.1
F7.2
F7.3
F7.4
F7.5
F8.
Check to insure integrity of acid resistant coating/mastics on duct work/furnace/stack
shells exposed during a fire.
Verify operations of all mechanical damper linkages and operability of stack dampers.
Perform a thorough refractory inspection. Look for water damage to refractory linings.
Warm up slowly to prevent spalling during startup.
Inspect all guy wires for damage and overstress.
Visually check structures adjacent to the fire area for damage. Pay particular attention
to structural members and connections (bolts, gusset plates, end plates and welded
joints) for distortion due to thermal or pressure shock.
Check integrity of ladders and walkways to handle design loads.
Look for ice damage and overloading of decks or other structures due to ice.
If structural pieces such as handrails, cross-beams, etc., are made out of pipe, be sure
that weep holes are drilled to prevent the possibility of bursting the pipe in a subsequent
fire from overheating of trapped air.
Inspect piping anchor points and guides for damage and/or failure.
WAREHOUSE AND STORAGE AREAS
F8.1
F8.2
F8.3
F8.4
F8.5
F8.6
Inspect building for safe access, structural integrity, and electrical service.
Inspect critical components (motors, instrumentation, gaskets, and all spares) stored in
warehouse areas for fire or water damage. Check nameplates, identification plates, and
tags for proper identification.
Inspect catalyst and containers.
Inspect chemicals and chemical containers.
Inspect all bottles, cans, and containers for damage and future reliability.
Move all suspect materials to a designated holding area for further inspection and/or
disposal.
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Page 27 of 27
Issued 09/15/03
ATTACHMENT G
POST-FIRE FITNESS-FOR-SERVICE INVESTIGATION CHECKLIST
Environmental
G1.
G2.
WASTE AND DRAINAGE
G1.1
Curbs and Firewalls
G1.1.1 Repair damaged unit curbs to prevent future oil spills from reaching and
accumulating oil in surrounding area.
G1.1.2 Be sure to close firewall or curb drains opened during or after a fire to facilitate
draining of firewater.
G1.1.3 Be alert for ponds or accumulation of oil that may have surfaced in new or
unexpected locations as a result of poor firewater runoff or temporarily higher
ground water levels.
G1.2
Sewers and Drains
G1.2.1 Make sure hydrocarbons are drained off. Also check for debris.
G1.2.2 Check the pumpout system for proper operation prior to startup. Make sure it is
not coked-up or plugged.
G1.2.3 Check the sewer system for hazardous materials from the fire. (Asbestos,
caustic, acid, NMP, hydrocarbons, explosive mixtures, etc.)
G1.2.4 Are sewers in the fire area open? Have they been damaged or broken? Should
they be rerouted? Are there trenches involved?
G1.3
Opening Equipment
G1.3.1 Make sure all liquids are drained from knockout drums and lines.
G1.3.2 Be cautious in opening equipment due to hazards from chemicals, chemical
residues or ash that can run out or be present.
G1.3.3 Be alert to the possibility of toxic or other reactive gas release when certain
materials or chemical storage equipment has been exposed to or consumed in a
fire. For example, certain plastics or similar materials have been known to
release hydrogen chloride, phosgene, etc. as a product of combustion or
reaction when burned.
G1.3.4 Be alert for potential trapped hydrocarbons and/or toxics when cutting piping
and/or opening vessels for removal or repairs. Such equipment may be plugged,
still pressurized and quite hot. For example, the reactors of a Reformer may be
insulated internally and don’t dissipate heat to the outside wall, thus the outside
surface may feel quite cool while contents of the vessel may still be extremely
warm. Check that all equipment is open and clear of gases, liquids and solids at
intermediate upstream and downstream points.
AREA SAFETY
G2.1
On units that handle acids, check any standing water for low pH.