AD/A320/8 Amdt 2 - Angle of Attack Sensors

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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) AD/A320/8 Amdt 1 and issues the following AD under subregulation 39.001(1) of CASR 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.
Airbus Industrie A319, A320 and A321 Series Aeroplanes

AD/A320/8 Amdt 2
Angle of Attack Sensors
All models A320.

1.    Action in accordance with SB A320-34-1012.
Note:  DGAC AD 90-018-006 (B) R2 refers.
2.    Action in accordance with SB A320-34-1013.

1.    Within 100 hours time in service from 17 May 1990.
2.    Prior to 31 August 1991.

This Amendment becomes effective on 29 January 2010.

To prevent a risk of simultaneous positioning of two angle of attack sensors which could lead to a pitch-down command.
The original AD was a temporary fix for the problem.  Amendment 1 was issued in October 1990 to incorporate the permanent modification.
This Amendment corrects the number of the DGAC AD mentioned in the Note.

Mike Higgins
Delegate of the Civil Aviation Safety Authority
4 January 2010