AD/INST/34 Honeywell Sp-300 DFCS Mode Control Panel 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/34.

Instruments and Automatic Pilots

AD/INST/34 Honeywell SP-300 DFCS Mode Control Panel 4/2009

Requirement:

CANCELLED.

This AD is cancelled on 9 April 2009.

Background:

This unique Australian AD raised in 1988 against Honeywell Alert Service Bulletin (SB) SB 21A-1142-16 required a modification to prevent unselected changes in the altitude window of the Sperry SP300 Autopilot Mode Control Panel.

Compliance was prior to 30 June1989.

As the required modification to the Mode Control Panel is published in AD/B737/68 this AD is considered to be no longer required.

James Coyne
Delegate of the Civil Aviation Safety Authority

12 February 2009