Airworthiness Directives; Dowty Aerospace Propellers Model R381/ 6-123-F/5 Propellers
airworthiness · Rule · Final rule; request for comments. · Published 1999-09-01 · Effective 1999-09-16 · 64 FR 47661
Document
Document number
99-22563
Federal Register citation
64 FR 47661
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Dowty Aerospace
Publication date
1999-09-01
Effective date
1999-09-16
FAA docket
Docket No. 99-NE-43-AD
Abstract
This amendment adopts a new airworthiness directive (AD) that is applicable to Dowty Aerospace Propellers Model R381/6-123-F/5 propellers. This action requires initial and repetitive visual and ultrasonic (UT) inspections of propeller blades for cracks across the camber face, and, if blades are found cracked, replacement with serviceable blades. This amendment is prompted by reports of a cracked composite propeller blade. The actions specified in this AD are intended to prevent propeller blade cracks and propagation, which could result in propeller blade separation and possible aircraft loss of control.