Commonwealth legislation

AD/PMC/42 - Oil Filled Hubs for Agricultural Aircraft

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

The directive requires owners of specified McCauley variable‑pitch propellers on agricultural aircraft to have hubs modified to be filled with dye‑detecting oil per McCauley Service Manual and referenced bulletins, and reduces propeller TBO to 1,200 hours. The Civil Aviation Safety Authority prescribes compliance by the next overhaul or by 1 December 1989; operators bear modification and increased overhaul costs.

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Current sections

Direct links to the current provisions in AD/PMC/42 - Oil Filled Hubs for Agricultural Aircraft.

AD/PMC/42 - Oil Filled Hubs for Agricultural Aircraft

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Propellers - Variable Pitch - McCauley

AD/PMC/42 Oil Filled Hubs for Agricultural Aircraft 13/88

Applicability: All model D2A34C58, D2A34C98 and D3A32C90 series propellers fitted to agricultural aircraft.

Requirement: Modify all propeller hubs to dye oil filled standard in accordance with McCauley Service Manual 720415 Supplement No 1. Service Bulletins 122 and 138C refer.

Note: FAA AD 78-20-01 and 85-08-08 refer.

Compliance: At next propeller overhaul or by 1 December 1989, whichever occurs first. Background: Further hub failures have occurred since revision of the threaded hub dye inspection

AD. Due to the load cycles imposed in a hub during agricultural operations and to

assist in early detection of hub cracks dye oil filling is being introduced. Propeller TBO has also been reduced to 1200 hours.

Source text

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

1 AD/PMC/42 - Oil Filled Hubs for Agricultural Aircraft