COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Airbus Industrie A319, A320 and A321 Series Aeroplanes

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

AD/A320/110 Flight Warning Computer 10/2000

Applicability:  Model A319, A320 and A321 series aeroplanes all serial numbers without Airbus Industrie Modification 26017 incorporated during production or Airbus Industrie Service Bulletin (SB) A320-31-1106 embodied post production.

Requirement: Replace both Flight Warning Computers (FWC) in accordance SB A320-31-1106.

Installation of a FWC standard E3+ in accordance with SB A320-31-1141 is considered an alternate method of compliance for this Directive.

Note: DGAC AD 2000-320-147(B) refers.

Compliance: Before 31 March 2002.

This Airworthiness Directive becomes effective on 5 October 2000.

Background: The Direction Generale de L’Aviation Civile of France has advised that radar altimeter software anomalies in FWCs below E2 standard could lead to erroneous aircraft position information resulting in no warning being issued. Compliance with this Directive corrects that condition.

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 25 August 2000

The above AD is notified in the Commonwealth of Australia Gazette on 6 September 2000.