Commonwealth legislation

AD/PMC/31 - Propeller Blade Actuating Pin Installation - Inspection

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Directive requires owners/operators of sixteen listed McCauley variable‑pitch propellers to dismantle and inspect blade ferrules and actuating pin installations, and to repair or replace pins, washers or ferrules so pin holes meet depths in McCauley Service Manual 720415.

Stated purpose is to correct shallow pin holes that may impair blade actuation; compliance, within 100 flight hours after 30 Nov 1976, imposes inspection/repair costs on operators and requires maintenance to follow the McCauley manual or FAA AD 76‑19‑04. SB No.99 does not apply.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/PMC/31 - Propeller Blade Actuating Pin Installation - Inspection.

AD/PMC/31 - Propeller Blade Actuating Pin Installation - Inspection

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/31 Propeller Blade Actuating Pin Installation - Inspection

11/76

Propeller Model	Series No	Propeller Model	Serial No
D2A34C49( )	692417	2A34C66( )	727628
D2A34C49( )	703405	2A34C66( )	732194
D2A34C50( )	64746	E2A34C73( )	720673
D2A34C50( )	690329	E2A34C73( )	721615
D2A34C58( )	721610	E2A34C73( )	732503
OR	734269	2A36C23( )	64358
F2A34C58( )	736436	2A36C23( )	66786
		D2A36C33( )	61005
		D2A36C33( )	611491

Note: The Sixteen propellers listed by specific S/No. are the only ones affected by this Airworthiness Directive.

Requirement: The above referenced propellers may have blade ferrules with incorrectly drilled (shallow) actuating pin holes. Dismantle the propeller and inspect to ensure that the correct pins are installed in the blade ferrules, and that the blade actuating pin holes in the ferrules are drilled and tapped to the depth listed in McCauley Service Manual 720415.

Repair or replace as necessary, any improperly installed blade actuating pins, washers, or blade ferrules, and re-assemble the propeller in accordance with McCauley Service Manual 720415, or later applicable issue. Note that the shallow actuating pin hole modification listed in McCauley SB No. 99 is not applicable to the above propeller models.

or FAA AD 76-19-04.

Compliance: Within 100 hours time in service after 30 November 1976.

Source text

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

1 AD/PMC/31 - Propeller Blade Actuating Pin Installation - Inspection