AD/F27/27 RPM Indicator Dial Markings Cancelled (Cth)

AIRWORTHINESS DIRECTIVE

On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive AD/F27/27.

Fokker F27 Series Aeroplanes

AD/F27/27 RPM Indicator - Dial Markings 11/2009

Requirement:

CANCELLED.

This AD is cancelled on 22 October 2009.

Background:

This unique Australian AD raised in 1960 against Fokker Service Bulletin (SB) N-3 required a modification to the engine RPM indicators by colour marking as a means to avoid continuous engine operation below 7,000 RPM.

Compliance not stated.  However, manufacturer’s compliance was within 7 days after receipt of Bulletin.

This AD has been sufficiently promulgated for the affected aircraft to have been modified by now; therefore this AD is considered to be no longer required.

James Coyne
Delegate of the Civil Aviation Safety Authority

10 September 2009