Commonwealth legislation

AD/PMC/40 - Blade Counterweight Bolt Replacement

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This Airworthiness Directive requires operators of aircraft fitted with McCauley propellers (models 4HFR34C652, 4HFR34C754, 4HFR34C755; affected serials per the service bulletin) to replace blade counterweight bolts because original black oxide bolts can corrode and crack, risking propeller or engine failure.

Compliance follows McCauley Service Bulletin No.166A — replacement at the next maintenance release or within 50 flight hours after 14 Sep 1987, whichever comes first.

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AD/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

View image in the official source 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.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.