AD/INST/1 Gyro Horizon Indicators Power Failure Warning Flag Modification 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/INST/1.

Instruments and Automatic Pilots

AD/INST/1 Gyro Horizon Indicators Power
Failure Warning Flag - Modification 3/2009

Requirement:

CANCELLED.

This AD is cancelled on 12 March 2009.

Background:

This unique Australian AD raised prior to 1964 required a modification concerning Sperry Model H-3 Gyro Horizon Indicator power failure warning flag.

Compliance was before installation in an aircraft.

As all affected Gyro Horizon Indicators would have been modified by now, this AD is considered to be no longer required.

James Coyne
Delegate of the Civil Aviation Safety Authority

27 January 2009