AD 2009-22-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Lycoming | O- | Airworthiness Directives; Hartzell Propeller Inc. ()HC-()2Y(K,R)-() Series Propellers |
Unsafe Condition
Failure of the propeller hub causing blade separation and subsequent loss of airplane control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Initial and repetitive eddy current inspections (ECIs) of the front cylinder half of the propeller hub for cracks. Remove cracked hubs from service before further flight. Allow installation of an improved design propeller hub (suffix SN 'A' or 'B') as terminating action to the repetitive ECI.
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Compliance Time
Within 100 operating hours time-in-service (TIS) after the last propeller hub ECI.
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Affected Aircraft
Hartzell Propeller Inc. ()HC-()2Y(K,R)-() series propellers with non-suffix serial number (SN) propeller hubs and suffix SN letter 'E' propeller hubs, installed on Lycoming O-, IO-, LO-, AEIO-, LIO-, TO-, LTO-, AIO-, and TIO-360 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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