AD 2003-04-25
Unsafe Condition
Fretting on the joint mating faces of propeller hubs could lead to failure of the hub due to loose hub through bolts.
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Required Actions
Inspect the hub joint mating surfaces for fretting. Replace any components found to be damaged or worn as necessary.
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Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
Dowty Aerospace Propellers, models R354, R375, R389, and R390, with serial numbers R354/4-123-F/13, R354/4-123-F/20, R375/4-123-F/21, R389/4-123-F/25, R389/4-123-F/26, and R390/4-123-F/27.
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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