AD/PHZL/50 - A-4025 Spring Retainer - Inspection
1AD/PHZL/50 - A-4025 Spring Retainer - Inspection
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Propellers - Variable Pitch - Hartzell
AD/PHZL/50 A-4025 Spring Retainer - Inspection 2/84
Applicability: Five bladed turbine propellers model HC-B5MP-3 Series, as listed in Service Letter No. 149.
Document: Hartzell Service Letter No. 149.
Compliance: At next reconditioning or rectification necessitating disassembly, whichever is the sooner.
Background: The manufacturer advises that a significant number of retainers have been discovered possessing an inclusion consequently a one off inspection is required to preclude the possibility of retainer failure.