Embry-Riddle Aeronautical University
Hangar Maintenance
(on Aircraft)
Chapter 14
Hangar Maintenance
(on Aircraft)
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Introduction
Organization of Hangar Maintenance
Problem Areas in Hangar Maintenance
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Non-routine Items
Parts Availability
Parts robbing (cannibalization)
Maintenance Support Shops
Ground Support Equipment (GSE)
Summary
Introduction
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Hangar Maintenance refers to that
done when aircraft is out of service
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Scheduled checks above “A” (i.e. C, D etc.)
Modifications to aircraft or systems by SB,
AD, or EO
Special inspections required by airline,
FAA, or operational conditions
Painting of aircraft
Aircraft interior modifications
Introduction
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PP&C schedules the activities &
coordinates with Ops & maintenance
activities, materiel etc..
Hangar shops, supply points, parts
storage, aircraft parking (esp.
type/model/series), tools & GSE
Hangar space adequate, & hangar
maintenance must be planned, scheduled,
& controlled to ensure work is completed
on time…TIME is MONEY
Organization of Hangar Maintenance
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Hangar Maintenance is a position under
director of aircraft maintenance
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Aircraft maintenance
 Responsible for all hangar maintenance
activities
– Controls flow of aircraft into & out of check,
maintenance crews, coordinates with overhaul &
support shops, materiel, PP&C, flt line maintenance
& OPS regarding aircraft in hangar
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GSE and facilities
 All GSE required, & hangar facilities & flt line
maintenance
Support Shops
 Welding shops, avionics, engine, mechanical,
upholstery, seats & interior
Problem Areas in Hangar Maintenance
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Non-routine Items
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Routine Maintenance has a fixed amount of time & are listed in
the Maintenance Planning Document (MPD)
ASSUMES all will go well with no delay or maintenance induced
problems etc..
Non-routine (unscheduled) requires best “guess-timate” & need
to keep PP&C in the loop
The time will be noted for future performance of “like” non-routine
tasks..important for planning purposes
Parts Availability
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Must have a parts staging area & plan ahead for the “out-ofservice” maintenance
Parts ordering, pick up & delivery needs to be efficient to
minimize down time of maintenance crews…
Problem Areas in Hangar Maintenance
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Parts Robbing (cannibalization)
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Necessary evil in maintenance
Mission oriented – must always deliver airworthy
vehicles to Ops to meet the flight schedule
Rules to consider:
 Cannibalization should be discouraged unless
necessary
 Parts must be ordered even if part is available on
another aircraft
 Only be performed with consent of management
and approval of director of maintenance
responsible for both aircraft
 Always try to reduce the redundancy of labor
Maintenance Support Shops
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These support shops don’t require FAA
licenses
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refurbish or repair aircraft panels
Fabrics & interior shops
Aircraft seat shops
Work is NOT directly part of the
scheduled maintenance although an
intricate part
May be required by work card, SB, AD,
or EO
Ground Support Equipment (GSE)
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“that equipment that is required to support the
operation & maintenance of the aircraft & all its
airborne equipment”
Two basic categories:
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Equipment to support servicing & handling of operational aircraft
while engaged in flight turnaround & ground movement activities
Equipment used to facilitate maintenance at turnaround,
scheduled or unscheduled downtime
Pg 161 list of equipment & usage
Must procure GSE & tooling appropriate for new
type/model/series – 9 – 12 months prior
Acquire type & level of maintenance to be
performed, # of multiple units,
GSE personnel is responsible for general
maintenance & upkeep of GSE (PMs, MRCs,
licensing etc.)
Hangar Maintenance
(on Aircraft)



Introduction
Organization of Hangar Maintenance
Problem Areas in Hangar Maintenance






Non-routine Items
Parts Availability
Parts robbing (cannibalization)
Maintenance Support Shops
Ground Support Equipment (GSE)
Summary
Questions?