COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
British Aerospace BAe 146 Series Aeroplanes
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/BAe 146/82 Rib 2 Lower Wing Skin Joint 13/2000
Applicability: Model BAe 146 Series 200 aircraft, constructors numbers E2188 and E2192. Model BAe 146 Series 300 aircraft, constructors numbers E3190 and E3194.
Requirement: Inspect in accordance with BAE Systems Mandatory Service Bulletin 57-40 revision 3.
Compliance: As specified in the Requirement document for the initial and repeat inspection requirements.
This Airworthiness Directive becomes effective on 28 December 2000.
Background: Certain wing-sets, delivered from the vendor, had a marked reduction in the amount of landing between four particular fastener hole centres and the edge of the butt strap at Rib 2 lower wing skin joint. A reduced hole landing could lead to a decrease in the long term damage tolerance residual strength. Four specified fasteners are removed from the right hand wing and an inspection of the holes is accomplished using eddy current techniques.
David Alan Villiers
Delegate of the Civil Aviation Safety Authority 7 November 2000
The above AD is notified in the Commonwealth of Australia Gazette on 22 November 2000.
Overview
The Civil Aviation Regulations 1998, enacted by the Australian Parliament, govern the safety and airworthiness of aircraft in Australia. In 2000, the Civil Aviation Safety Authority (CASA) introduced an Airworthiness Directive (AD) to address a specific issue with the British Aerospace BAe 146 Series Aeroplanes, particularly those in the Series 200 and 300. The AD, identified as AD/BAe 146/82, was issued under subregulation 39.1(1) of the Civil Aviation Regulations 1998 and became effective on 28 December 2000. This directive mandates specific inspections to mitigate a potential unsafe condition where certain wing-sets delivered from the vendor had a marked reduction in the amount of landing between four particular fastener hole centres and the edge of the butt strap at Rib 2 lower wing skin joint. The policy objective of this AD is to ensure the long-term damage tolerance residual strength of the aircraft, thereby enhancing flight safety.
Scope and Application
The Airworthiness Directive issued under the Civil Aviation Regulations 1998 applies specifically to BAe 146 Series 200 aircraft with constructor numbers E2188 and E2192, and BAe 146 Series 300 aircraft with constructor numbers E3190 and E3194. The directive mandates that these aircraft undergo an inspection of the Rib 2 lower wing skin joint in accordance with BAE Systems Mandatory Service Bulletin 57-40 revision 3 to address a safety concern related to the reduction in the amount of landing between certain fastener hole centres and the edge of the butt strap, which could compromise long-term damage tolerance and residual strength. Compliance with this directive is necessary within the timeframes specified in the requirement document for both initial and repeat inspections. The directive, effective from 28 December 2000, is issued by a delegate of the Civil Aviation Safety Authority and was published in the Commonwealth of Australia Gazette on 22 November 2000.
Key Provisions
The Civil Aviation Regulations 1998, specifically under Part 39 - 105, establish a framework for ensuring the airworthiness of aircraft through the issuance of Airworthiness Directives (ADs). Section 39.1 (1) of the CAR 1998 empowers the Civil Aviation Safety Authority (CASA) delegate to issue such directives when necessary to correct unsafe conditions. In this context, AD/BAe 146/82 pertains to the BAe 146 Series 200 and 300 aircraft, with specific constructors' numbers E2188, E2192, E3190, and E3194. The directive mandates that an inspection be carried out on the Rib 2 lower wing skin joint in accordance with BAE Systems Mandatory Service Bulletin 57-40 revision 3. Compliance with this AD is critical and must be achieved within the timeframes specified in the requirement document.
Operators of the affected BAe 146 Series aircraft must adhere to the inspection requirements outlined in the AD. This involves removing four specified fasteners from the right-hand wing and inspecting the holes using eddy current techniques. These inspections are necessary to ensure that the integrity of the wing skin joint is maintained, thereby preventing a decrease in long-term damage tolerance residual strength, which could otherwise compromise the aircraft's safety. The AD stipulates that these inspections should be conducted as per the detailed instructions provided in BAE Systems Mandatory Service Bulletin 57-40 revision 3.
Failure to comply with the AD/BAe 146/82 may result in serious safety implications. The AD becomes effective on 28 December 2000, and operators must ensure that all required inspections are performed within the specified timeframes. Non-compliance with the AD may lead to the aircraft being deemed unairworthy, potentially resulting in grounding. This could have significant legal and financial consequences for the operators, including possible enforcement actions by CASA. The exact penalties are not detailed in the provided text, but they may include fines, sanctions, or other legal repercussions under the Civil Aviation Act 1988 and associated regulations.