AD 00-5009
Unsafe Condition
Reports of load compressor impeller failures have been received, which could lead to an uncontained APU failure and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install an external load compressor containment shield or install a load compressor impeller with lower stress concentrations.
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Compliance Time
Before further flight.
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Affected Aircraft
Honeywell International (formerly AlliedSignal Inc.) 36-300(A), 36-280(B), and 36-280(D) series Auxiliary Power Units (APUs).
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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