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.
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.
Eugene Paul Holzapfel
Delegate of the Civil Aviation Safety Authority 26 June 2002
The above AD is notified in the Commonwealth of Australia Gazette on 17 July 2002.
Overview
The Civil Aviation Safety Authority (CASA) has issued Airworthiness Directive (AD) AD/BAe 146/95 Amendment 2 to address safety concerns related to the use of ceramic terminal blocks in specific engine zones of British Aerospace BAe 146 Series Aeroplanes and Avro 146-RJ series aeroplanes. This legislative instrument was enacted in 2002 to mandate the replacement of existing terminal blocks with ceramic terminal blocks that meet the fireproof requirements of the affected zones, as identified by BAe. The policy objective of this AD is to ensure the continued airworthiness and safety of these aircraft by implementing necessary modifications to prevent unsafe conditions that could potentially lead to accidents or incidents. The directive follows an investigation into the use of 'Low Temp' terminal blocks 'G' in engine zones 412, 422, 432, and 442 and supersedes previous amendments to incorporate the latest modifications and compliance timelines.
Scope and Application
The Airworthiness Directive AD/BAe 146/95 Amdt 2 pertains to all British Aerospace BAe 146 100, 200 and 300 series aeroplanes, as well as all Avro 146-RJ70, RJ85 and RJ100 series aeroplanes. It was issued under the authority of the Civil Aviation Safety Authority (CASA) and mandates that specific modifications be implemented to address identified safety issues. The directive requires the incorporation of Modification HCM01693A, as outlined in the BAe Systems Mandatory Modification Service Bulletin SB.71-077-01693A Revision 2 dated 28 May 2002, which has been classified as mandatory by the UK's Civil Aviation Authority (CAA). Compliance with these modifications must be achieved before 31 July 2004, with the amendment becoming effective on 8 August 2002. The directive revokes the previous AD/BAe 146/95 Amdt 1, which was issued to address the replacement of existing terminal blocks with ceramic terminal blocks, and this amendment follows further revisions to the service bulletin. The scope of this directive is national, applying throughout the Commonwealth of Australia as notified in the Commonwealth of Australia Gazette on 17 July 2002.
Key Provisions
The main operative sections of the Airworthiness Directive (AD/BAe 146/95 Amdt 2) concern the applicability, requirement, and compliance of the directive. The applicability section (paragraph 2) specifies that the directive applies to all BAe 146 100, 200 and 300 series aeroplanes, as well as all Avro 146-RJ70, RJ85, and RJ100 series aeroplanes. The requirement section (paragraph 3) mandates that these aircraft incorporate Modification HCM01693A as per BAe Systems Mandatory Modification Service Bulletin SB.71-077-01693A Revision 2 dated 28 May 2002. This modification is necessary to replace existing terminal blocks with ceramic terminal blocks that meet the fireproof requirements for engine zones 412, 422, 432, and 442. The compliance section (paragraph 4) specifies that the modification must be completed before 31 July 2004.
The obligations imposed by the AD on the relevant parties include ensuring that all BAe 146 and Avro 146 series aeroplanes comply with the requirement to incorporate the specified modification. This involves installing the ceramic terminal blocks as per the instructions in the Mandatory Modification Service Bulletin, ensuring that the aircraft meet the necessary safety standards for operating in the specified engine zones. The compliance date of 31 July 2004 must be strictly adhered to, with any non-compliance potentially resulting in the aircraft being deemed unsafe to operate.
Failure to comply with the AD may result in significant legal consequences. While specific offences and penalties are not detailed within the AD itself, non-compliance with airworthiness directives in Australia can lead to enforcement actions by the Civil Aviation Safety Authority (CASA). Such actions may include fines, grounding of the aircraft, or other regulatory penalties. The severity of the penalties can vary based on the nature and extent of the non-compliance, with potential civil or criminal liabilities in cases of serious safety breaches. It is crucial for operators and owners of the affected aircraft to ensure full compliance with the directive to avoid these consequences.