NAS Infrastructure
Management
ATO Technical
Operations
Presented to: NEXTOR and FAA Conference
at The National Academies
By: Juaida Norrell
Date: September 9, 2005
Federal Aviation
Administration
NAS Buildings and Building Systems
• NAS building and building systems infrastructure is
made up of:
– 9,000 General National Airspace unstaffed facilities
– Power systems
• 3800 engine generators
• 587 uninterruptible power supply systems
–
–
–
–
–
–
21 Air Route Traffic Control Centers (ARTCCs)
3 Center Radar Approach Control (CERAPs)
1 Combined facility (ATCT/TRACON/CERAP)
519 Terminal facilities
3 Automated Flight Service Stations (Alaska)
14 Flight Service Stations (Alaska)
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Surveillance
NAS Infrastructure Management
September 9, 2005
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Administration
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Navigation Aids
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Communications
NAS Infrastructure Management
September 9, 2005
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Administration
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Facility Assessments
Facility Condition Index (FCI)
FCI = Dollar value of backlog (Maintenance & repair)
Current replacement value
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Shelter Replacement
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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HVAC Replacement
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Structural Towers
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Access Roads
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Roofing
NAS Infrastructure Management
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Administration
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NAS Power Systems have Multiple Components
Lightning Protection
Service Life - 20 Years
UPS
Service Life - 10 Years
Grounding
Service Life - 20 Years
Cable Distribution
Service Life - 20 Years
Engine Generator
Service Life - 20 Years
Transformer
Service Life - 20 Years
Switchboard
Service Life - 20 Years
NAS Infrastructure Management
September
9, 2005
Utility Service
Service Distribution Cable
Federal Aviation
Administration
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Critical Power Distribution System (CPDS) Have
Multiple Complex Subsystems
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Both GNAS and ARTCC Batteries Must Be
Replaced before They Fail
GNAS Battery Bank
“Wet Cells”
ARTCC UPS Batteries
“VRLA Cells”
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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NAS Infrastructure Management
September 9, 2005
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Administration
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DC Systems Replace Standby Generators
Before
After
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Legacy Engine Generators:
Overdue To Be Replaced
Vintage E/G in NAS service
Current engine generator
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Airport Buried Power Cable:
Failure Causes Delays
Philadelphia Airport
Power and Data
Cable Outage, July
2005
FAULT
LOCATION
FAULT
COM
MANHOLE
POWER
LINE AND
COM ROUTE
PVC
DUCT
13.2 KV
POWER
MANHOLE
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Proper Grounding Is Critical
•Phoenix TDWR TVSS
•Chicago ATCT UPS
Lightning seeks elevated
objects such as ATCTs,
Radars, Antennas, fences
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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Commercial and Standby power outages are increasing
Commercial and Standby Power Outage Count
Note: The actual count of commercial power outage exceeds those reported here due to standby power systems preventing loss
of service.
500
450
400
Power Outage Count
350
Service outages due to loss of commercial power
300
250
200
150
100
50
Service outages due to loss of FAA power
0
1/0
0
4/0
0
7/0
0
10
1
/00 /01
4/0
1
7/0
1
10
1
/01 /02
4/0
2
7/0
2
10
1
/02 /03
4/0
3
7/0
3
1
10
/03 /04
4/0
4
7/0
4
10
1
/04 /05
4/0
5
7/0
5
Date
NAS Infrastructure Management
September 9, 2005
Federal Aviation
Administration
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