Commonwealth legislation

AD/PFP/9 Amdt 1 - Propeller Mounting Bolts - Inspection and Torque Check

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive covers McCauley and Sensenich fixed‑pitch metal propellers and requires magnetic‑particle inspection of propeller mounting bolts whenever a propeller is removed for reconditioning or repair, plus recurring torque checks on those bolts at intervals not exceeding 500 hours. It affects aircraft owners/operators and maintenance providers—adding one‑off inspection work, ongoing torque‑monitoring, and associated costs and downtime to detect bolt defects and reduce bolt‑related failure risk.

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AD/PFP/9 Amdt 1 - Propeller Mounting Bolts - Inspection and Torque Check

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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 - Fixed Pitch

AD/PFP/9

Amdt 1

Propeller Mounting Bolts - Inspection NK and Torque Check

Applicability: All McCauley and Sensenich fixed pitch metal propellers.

Requirement: 1. Inspect propeller mounting bolts by magnetic particle method whenever the propeller is removed from the engine for reconditioning or repair.

The propeller mounting bolt torque shall be checked at intervals not exceeding 500 hours time in service.

Compliance: As above.

Source text

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