AD 2002-19-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Lycoming IO-540 | Airworthiness Directives; Textron Lycoming IO-540, LTIO-540 and TIO-540 Series Reciprocating Engines |
| engine | Lycoming | IO-540 | Airworthiness Directives; Textron Lycoming IO-540, LTIO-540 and TIO-540 Series Reciprocating Engines |
Unsafe Condition
Failure of the crankshaft, which could result in total engine power loss, in-flight engine failure, and possible forced landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace certain serial-numbered crankshafts that were hammer forged with crankshafts that were press forged. This action must be completed before further flight.
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 IO-540, LTIO-540, and TIO-540 series engines rated at 300 horsepower or higher, with crankshafts manufactured between March 1997 and the present. Also includes IO-540 engines modified by STC with a turbocharger system.
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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