AD 82-16-02
Unsafe Condition
The AD addresses multiple unsafe conditions including potential cross connection of engine fire extinguishing bottle electrical wiring, inadvertent fuel transfer, fuel leakage due to chafing damage, fuselage fire risk from APU fuel supply line interference, APU damage from check valve wear, failure of APU exhaust jet pipe due to silencer issues, inadequate APU compartment drainage, firewall integrity loss from unused holes, control cable failure from corrosion, and inadvertent closure of fire shutoff valves.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install placards and inspect/rework engine fire extinguishing wiring per SB F28/26-2; install check valves and rework defueling control valve wiring per SB F28/28-3; inspect/repair fuel supply tubes and provide chafing protection per SB F28/28-8 or F28/28-22; inspect/replace APU fuel supply line and modify clearances per SB F28/28-32; inspect/replace check valve per SB F28/36-9; inspect/modify bleed air duct fire seal per SB F28/36-10; inspect APU extension silencer per SB F28/49-24; modify APU drain system per SB F28/49-25; close firewall holes per SB F28/54-2; inspect/replace/treat control cables per SB F28/76-16; inspect microswitch adjustments and install seal wire per SB F28/76-20.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required within specified time frames such as 750 hours, 900 hours, 100 hours, 1500 hours, or 150 hours time in service, with some requiring recurring inspections at intervals like 3000 hours time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
FOKKER B.V. Model F28 Mark 1000 and Mark 4000 airplanes with specific serial numbers ranging from 11003 through 11131, 11991 through 11993, and others as listed in the AD, excluding serial numbers of non-U.S. certified models.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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