AD 2002-23-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Lycoming AEIO-540 | Airworthiness Directives; Textron Lycoming AEIO-540, IO-540, LTIO-540, O-540, and TIO-540 Series Reciprocating Engines |
| engine | Lycoming | AEIO-540 | Airworthiness Directives; Textron Lycoming AEIO-540, IO-540, LTIO-540, O-540, and TIO-540 Series Reciprocating Engines |
Unsafe Condition
Failure of zinc-plated crankshaft gear retaining bolts can lead to loss of all engine power and possible forced landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace certain zinc-plated crankshaft gear retaining bolts. Inspect for the presence of suspect bolts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Textron Lycoming AEIO-540, IO-540, LTIO-540, O-540, and TIO-540 series reciprocating engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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