Enclosure 1 NFPA 409 Hangar Testing Chapter 11 2026
Updated
A PDF document (146 KB) attached to U.S. Coast Guard Air Station Port Angeles Annual Fire Protection System Inspection, from the US Coast Guard. Due Nov 23, 2026, 3:00 PM (UTC-8).
File name: Enclosure 1 NFPA 409 Hangar Testing Chapter 11_2026.pdf
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NFPA 409-26
AIRCRAFT HANGARS
2016 Edition
Chapter 11 Inspection, Testing, and Maintenance
11.1 Fire Protection Systems.
11.1.1 Inspection, testing, and maintenance of fire protection systems in aircraft hangars shall be performed in accordance with NFPA 11, NFPA 25, NFPA 70, NFPA 72, or NFPA 80 as applicable and as supplemented by Table 11.1.1.
11.1.2 The 5-year discharge test for piping required in Table 11.1.1 shall not be required if an internal inspection in accordance with NFPA 25 indicates that the pipe is in good condition and free of obstructions, mechanical damage, leakage, and corrosion. 11.1.3 Records of inspections, tests, and test results shall be maintained.
Table 11.1.1 Inspection and Testing of Hangar Fire Protection Systems Enclosure 1
System Components
Weekly
Type and Frequency of Inspections and Tests
Sprinkler heads
—
Piping
—
Pipe hangers
—
Sprinkler alarm valve
—
Deluge valve
—
Pre-action system
—
Dry pipe systems
—
Shutoff valves
—
Fire pumps
F2
Water reservoirs
—
Hose stations
—
Strainer filter baskets
—
Foam concentrate
—
Concentrate storage tanks
—
Concentrate pumps
F2
Concentrate control valve (automatic) —
Concentrate shutoff valve
—
Foam proportioning device
—
Water-powered monitor nozzle
—
Electric-powered monitor nozzle —
Water-powered high-expansion-foam (HEF)
Generator
—
Electric-powered high-expansion-foam (HEF)
Generator
—
Pneumatic detector
—
Electric detector
—
Optical detector
V
Control panels
—
Alarm transmission (local and remote) —
Tamper switch (supervisory switch valve) —
Flow indication switch
—
Low air pressure supervisory switch —
Supervisory alarms
—
Manual actuation stations
—
Hangar floor drain system and separators —
Fire doors
—
Gas detectors
—
Ventilation system in pits, tunnels, and ducts —
Grounding equipment
—
Monthly
Quarterly
SemiAnnually Every5
Annually
Years
—
—
—
V
V
V
V
V
—
V
V
—
—
V
—
V
V
V
V
V
—
—
—
O1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
V
V
V
—
O
D
D
F
D
—
—
V
F
—
O
O
F
—
D
F
—
D
—
—
D
—
—
—
—
—
D
—
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