AD 2012-01-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine |
| engine | Rotax | Aircraft | Airworthiness Directives; Various Aircraft Equipped With Rotax Aircraft Engines 912 A Series Engine |
Unsafe Condition
Deviation in the manufacturing process of certain part number 888164 crankshafts may cause cracks on the surface of the crankshaft on the power take off side, which could lead to failure of the crankshaft support bearing and possibly result in an in-flight engine shutdown and forced landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect all affected crankshafts for cracks. Depending on findings, take corrective action as required. Prohibit installation of any affected crankshaft on an engine unless it has passed the required inspection.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 4 hours time-in-service
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Affected Aircraft
Various aircraft equipped with Rotax Aircraft Engines 912 A series engine, specifically those with part number 888164 crankshafts listed in Table 1 of the AD.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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