AD/APU/15 - GTCP 36 Series APU Load Compressor Containment (Cth)

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES

Auxiliary Power Units

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/APU/15 GTCP 36 Series APU Load Compressor Containment

8/2000

Applicability :

Honeywell International (formerly AlliedSignal Inc.) 36-300(A), 36-280(B) and 36- 280(D) Series Auxiliary Power Units (APU's) with load compressor impellers P/Ns 3822270-4 or 3822270-5 installed. These APUs may be installed on Airbus Industrie A319, A320, A321 series, Boeing 737-300, -400, -500 series and MD-80 series aircraft.

Requirement: 1. APUs fitted with load compressor impeller P/N 3822270-4. Install either:

(a) an external load compressor containment shield: or

(b) load compressor impeller P/N 3822270-5, in accordance with AlliedSignal Inc. SB GTCP36-49-7471 dated April 20, 1999, SB GTCP36-49-7472 dated March 31,1999, or GTCP36-49-7473 dated March 31,1999, as applicable.

2. APUs fitted with load compressor impeller P/N 3822270-5.

Install an external load compressor containment shield in accordance with AlliedSignal Inc. SB GTCP36-49-7471 dated April 20, 1999, SB GTCP36-49-7472 dated March 31,1999, or GTCP36-49-7473 dated March 31,1999, as applicable.