AD 2016-05-04
Unsafe Condition
Reports of dowel hole cracks in the face of the rear hub half.
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Required Actions
Install liners into the hub location dowel holes and identify the hub part number (P/N). Use Dowty Propellers Alert Service Bulletin (ASB) No. F50-61-A165, Revision 2, dated July 28, 2015, for installation and identification.
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Compliance Time
At the next removal of the propeller from the airplane, after the effective date of this AD.
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Affected Aircraft
Dowty Propellers R352/6-123-F/1, R352/6-123-F/2, and R410/6-123-F/35 model propellers, part numbers (P/Ns) 660715001, 660715004, and 660715005 with hub P/Ns 660715201, 660715255, 660720217, 660720241, 660720252, 660720260, and 660720288.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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