AD/PMC/40 - Blade Counterweight Bolt Replacement
1AD/PMC/40 - Blade Counterweight Bolt Replacement
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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 - McCauley
AD/PMC/40 Blade Counterweight Bolt Replacement 12/87 DM
Applicability: All model 4HFR34C652, 4HFR34C754 and 4HFR34C755 Propellers.
Note: Propeller S/No’s affected are contained in Table 1 of Requirement document.
Requirement: Action in accordance with McCauley Service Bulletin No 166A.
Compliance: At next issue of Maintenance Release or within 50 hours time in service after 14 September 1987 whichever occurs first.
Background: The manufacturer advised of corrosion being found on the black oxide counter weight bolts. Corroded bolts can crack, so replacement of these bolts with a new part number item is required.