AD 2001-26-05
Unsafe Condition
Partial slippage at the bond joint between the blade tulip and the composite blade airfoil interface due to debonding.
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Required Actions
Remove all four existing propeller blades (P/N's R810640-1, R810640-2, and R810640-3) from service, replace them with serviceable propeller blades, and mark the propeller with a new part number.
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Compliance Time
Within 30 days of the effective date of this AD.
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Affected Aircraft
Hamilton Sundstrand Model 247F propellers, part numbers 810610-1 and 815550-1, installed on, but not limited to, Aerospatiale ATR-72 and Xian MA-60 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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