1AD/BAe 146/95 Amdt 2 - Ceramic Terminal Blocks

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AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/BAe 146/95 Amdt 1 and issues the following 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.

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British Aerospace BAe 146 Series Aeroplanes

AD/BAe 146/95

Amdt 2

Ceramic Terminal Blocks 8/2002

Applicability: All BAe 146 100, 200 and 300 series aeroplanes.

All Avro 146-RJ70, RJ85 and RJ100 series aeroplanes.

Requirement: Incorporate Modification HCM01693A in accordance with BAe Systems Mandatory Modification Service Bulletin SB.71-077-01693A Revision 2 dated 28 May 2002.

Note: This Modification Service Bulletin has been classified as Mandatory by the CAA(UK).

Compliance: Before 31 July 2004.

This Amendment becomes effective on 8 August 2002.

Background: BAe initially advised that an investigation into the use of ‘Low Temp’ terminal blocks ‘G’ in engine zones 412, 422, 432 and 442 identified the requirement to replace existing terminal blocks with a ceramic terminal block that meets the fireproof requirements of these zones.

The original issue of this Directive required replacement of the existing terminal blocks with ceramic terminal blocks.

Amendment 1 was issued following advice from BAe that the original ceramic terminal block mounting screws (Part Number AV0022B24) were too short

This Amendment follows the issue of Revision 2 of the service bulletin which revises the compliance time, introduces changed part numbers and additional installation notes.

The original issue of this Airworthiness Directive became effective on 27 December 2001.

British Aerospace BAe 146 Series Aeroplanes

AD/BAe 146/95 Amdt 2 (continued)

Amendment 1 of this Airworthiness Directive became effective on 11 July 2002.

Signature of Eugene Paul Holzapfel, Delegate of the Civil Aviation Safety Authority.