AD/PHS/9 - Model 54H60 Pitch Lock Regulator Assembly - Inspection and Modification
1AD/PHS/9 - Model 54H60 Pitch Lock Regulator Assembly - Inspection and Modification
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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 - Hamilton Standard
AD/PHS/9 Model 54H60 Pitch Lock Regulator Assembly - Inspection and Modification
Applicability: Propeller models 54H60-81, 91, 117, 125. Document: Hamilton Standard SB 54H60, No.-59 Rev. 1.
Note: FAA AD 75-03-05 refers.
Compliance: In accordance with the requirement document.
Background: To reduce the possibility of separation of the pitchlock extension sleeve, modifications are introduced to the retention thread and surge valve housing.
11/81