AD 2006-18-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Lycoming | O- | Airworthiness Directives; Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) Series Propellers |
Unsafe Condition
Cracks in the propeller hub fillet could lead to propeller 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
Perform an initial eddy current inspection (ECI) of the front cylinder half of non-suffix SN propeller hubs within 50 operating hours time-in-service (TIS). Perform repetitive ECIs within every 100 operating hours TIS or annual inspection, whichever occurs first. Remove cracked hubs from service before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 operating hours time-in-service for initial inspection; within every 100 operating hours TIS or annual inspection for repetitive inspections.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hartzell Propeller Inc. ( )HC-( )2Y( )-( ) series propellers with non-suffix serial number (SN) propeller hubs installed on Lycoming O-, IO-, LO-, and AEIO-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 4, 2026
Rights: U.S. Government Public Domain
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