AD 96-04-09
Unsafe Condition
Corrosion of the auxiliary power unit (APU) mounting frames due to moisture accumulation through drain holes could lead to frame failure, resulting in APU displacement and potential fuel leakage posing a fire hazard or rendering the APU inoperative.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect mounting frames for drain holes. If present, inspect for corrosion; replace frames if corrosion is found. Compliance times are 3 months if corrosion exists, 9 months if no corrosion.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Replacement must be accomplished within 3 months if corrosion is found, or within 9 months if no corrosion is found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fokker Model F28 Mark 0100 series airplanes, all serial numbers.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.