AD/A320/159 Amdt 1 - Emergency Escape Path Marking System Power Supplies (Cth)

AIRWORTHINESS DIRECTIVE For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/A320/159 and issues the following AD under subregulation 39.1 (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/A320/159 Amdt 1

Emergency Escape Path Marking System Power Supplies

12/2004

Applicability: Airbus A319, A320 and A321 series aeroplanes all serial numbers, that are equipped with the Emergency Power Supply Units (EPSU) of the Floor Proximity Emergency Escape Path Marking System (FPEEPMS) Bruce Part Number (P/N) 100865.

Note 1: Action is not required for aeroplanes with EPSUs having Diehl P/N 3214-51, 3214-52, 3214-54 or 3214-55 if a Bruce EPSU P/N 100865 is not installed.

Requirement: 1. For aeroplanes equipped with Diehl EPSU P/N 3214-51, 3214-52, 3214-54 or 3214-55 and Bruce EPSU P/N 100865 - If not previously accomplished in accordance with AD/A320/159 original issue, carry out the following in accordance with Airbus Service Bulletin (SB) A320-33-1041 or later revision approved by the DGAC:

a. Remove Bruce EPSU P/N 100865,

b. Remove Diehl EPSU P/N 3214-51, 3214-52, 3214-54 or 3214-55,

c. Install improved Diehl EPSU P/N 3214-54-10 or 3214-55-10, and