COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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.
Boeing 767 Series Aeroplanes
AD/B767/176 Nose Wheel Well Side Panels and Top Panel 9/2002
Applicability: Model 767 series aircraft, line number 1 through 62.
Requirement: Action in accordance with the technical requirements of FAA AD 2002-12-05 Amdt 39-12777.
Note: Replacement of all the rivets with bolts in accordance with Figure 5 of Boeing Alert Service Bulletin 767-53A0090 Revision 1, dated 14 September 2000, constitutes terminating action for the repetitive inspection required by paragraph (a) of the Requirement document.
Compliance: As specified in the Requirement document, with a revised effective date of 5 September 2002.
This Airworthiness Directive becomes effective on 5 September 2002.
Background: The manufacturer received a report from an operator of 155 broken rivets found in the left and right nose wheel well side panels and top panel on one aircraft. Analysis indicates that pressurisation loads on the side panel and top panel webs results in high prying loads on the rivets. Continued pressurisation cycles on aircraft with broken rivets could result in the initiation of fatigue cracks.
David Alan Villiers
Delegate of the Civil Aviation Safety Authority 24 July 2002
The above AD is notified in the Commonwealth of Australia Gazette on 14 August 2002.
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Overview
The Civil Aviation Regulations 1998, which were enacted to ensure the safe operation of civil aircraft within Australia, include specific provisions under Part 39, detailing requirements for airworthiness directives. One such directive, AD/B767/176, was introduced in September 2002 to address safety concerns identified in Boeing 767 series aircraft. This directive was issued by David Alan Villiers, a delegate of the Civil Aviation Safety Authority (CASA), following a report of broken rivets in the nose wheel well side panels and top panel of a Model 767 series aircraft. The directive mandates corrective action to mitigate the risk of fatigue cracks caused by pressurisation loads, ensuring the continued airworthiness of the affected aircraft. The policy objective of this directive is to maintain the highest safety standards in civil aviation by promptly addressing identified safety issues.
Scope and Application
This Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) applies to Boeing 767 series aeroplanes with line numbers 1 through 62. The directive mandates specific actions to address an identified safety issue concerning the rivets in the nose wheel well side panels and top panel. These actions are to be carried out in accordance with the technical requirements outlined in FAA AD 2002-12-05 Amdt 39-12777, which includes replacing the rivets with bolts as specified in Boeing Alert Service Bulletin 767-53A0090 Revision 1 dated 14 September 2000. The directive, effective from 5 September 2002, mandates compliance with the detailed instructions provided in the requirement section of the document. This AD is a part of the Civil Aviation Regulations 1998, ensuring that the specified modifications are implemented to mitigate the risk of fatigue cracks due to pressurisation cycles on the affected aircraft parts.
Key Provisions
The Civil Aviation Regulations 1998 (CAR 1998) under PART 39, 105, specifically mandate the creation and issuance of Airworthiness Directives (ADs) by the Civil Aviation Safety Authority (CASA) to ensure the safety of aircraft. One such directive, AD/B767/176, pertains to the Boeing 767 series aircraft, line numbers 1 through 62, focusing on the nose wheel well side panels and top panel (section 9/2002). This directive requires specific actions to be taken to address the identified unsafe condition, following the technical requirements of FAA AD 2002-12-05 Amdt 39-12777, and also mandates the replacement of all rivets with bolts in accordance with Boeing Alert Service Bulletin 767-53A0090 Revision 1, dated 14 September 2000. The compliance timeline for this directive is set out in the requirement document, with a revised effective date of 5 September 2002.
The AD imposes clear obligations on the entities governed by it, primarily focusing on the operators of the Boeing 767 series aircraft. They are required to undertake the specified actions to ensure the safety of their aircraft, including the replacement of rivets with bolts in the nose wheel well side panels and top panel, to prevent the initiation of fatigue cracks due to high prying loads from pressurisation cycles. This directive also stipulates that the action must be carried out in accordance with the detailed instructions provided in the requirement document, ensuring that the safety measures are applied correctly and consistently across all applicable aircraft.
Breach of the provisions outlined in the AD/B767/176 could result in significant legal consequences. While the specific penalties are not detailed in the provided text, it is implied that non-compliance with Airworthiness Directives could lead to enforcement actions by the Civil Aviation Safety Authority. Such actions might include fines, operational restrictions, or even grounding of the aircraft until the required actions are satisfactorily completed. The severity of the penalties underscores the importance of adhering to the directive to maintain the safety and airworthiness of the aircraft.