AD 2002-09-08
Unsafe Condition
Failure of the propeller blade from fatigue cracks in the blade shank radius, which can result in damage to the airplane and loss of airplane control.
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Required Actions
Initial blade inspections; rework of all 'Y' shank blades including cold rolling of the blade shank retention radius; blade replacement and modification of pitch change mechanisms for certain propeller models; and changing the airplane operating limitations with specific models of propellers installed.
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Compliance Time
Before further flight.
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Affected Aircraft
Hartzell models HC-( )Y( )-( )( )( ) compact series, constant speed or feathering propellers with Hartzell manufactured 'Y' shank blades.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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