COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety 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 revokes Airworthiness Directive (AD) AD/B767/96 Amdt 1 and issues the following AD under subregulation 39.1 (1) of CASR 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/B767/96
Amdt 2
Trailing Edge Flaps - Hinge Fitting Assembly Bolts
9/2003
Applicability: Model 767-200, -300, and -300F series aircraft, line numbers 1 through 710. Requirement: Action in accordance with the technical requirements of FAA AD 2003-09-08 Amdt
39-13137.
Note: Boeing Alert Service Bulletin 767-27A0151 Revision 4 and Service Bulletin 767-27A0155 Revision 2 refer.
Compliance: As specified in the Requirement document, with a revised effective date of 7 August 2003.
This Amendment becomes effective on 4 September 2003.
Background: The manufacturer received a report of the separation of a 20-foot section of trailing edge flap, with associated damage to spoilers 9 and 12. Investigation revealed that four bolts attaching the inboard hinge fitting had failed; one bolt had previously fractured due to fatigue, two bolts partially fractured due to fatigue with subsequent overload, and one bolt failed fully in overload.
Amendment 1 introduced revision 2 of the Requirement document, which clarified and alleviated certain requirements.
Amendment 2 is issued in response to a new FAA AD, which reduces the applicability of the existing FAA AD, adds inspections, and mandates terminating action.
David Villiers
Delegate of the Civil Aviation Safety Authority 22 July 2003
The above AD is notified in the Commonwealth of Australia Gazette on 13 August 2003.
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Overview
The Civil Aviation Safety Regulations 1998, specifically under Part 39 - 105, establish a framework for ensuring the safety of civil aviation in Australia. One such regulation is the Airworthiness Directive (AD) concerning the Boeing 767 series aeroplanes, issued by the Civil Aviation Safety Authority (CASA) to address identified safety concerns. The AD AD/B767/96 Amdt 2 was introduced to rectify an unsafe condition involving the trailing edge flaps' hinge fitting assembly bolts, following a reported separation incident. The directive mandates specific actions in accordance with the Federal Aviation Administration's (FAA) technical requirements, aiming to prevent further occurrences of such failures and thereby enhance aviation safety. This legislative instrument is a critical mechanism through which CASA exercises its authority to ensure that civil aviation operations in Australia adhere to stringent safety standards.
Scope and Application
The Civil Aviation Safety Regulations 1998 (CASR) govern the safety of civil aviation in Australia and apply to all aircraft registered in Australia and to some other aircraft operating in Australian airspace. Specifically, Airworthiness Directive (AD) AD/B767/96 Amdt 2 issued under the authority of the Civil Aviation Safety Authority (CASA) applies to Boeing 767 series aeroplanes, including models 767-200, -300, and -300F, with line numbers 1 through 710. The AD mandates that specific action be taken to address an unsafe condition identified with the trailing edge flaps, requiring adherence to the technical requirements of FAA AD 2003-09-08 Amdt39-13137. The directive outlines actions including inspections and terminating actions to be carried out by authorised personnel within the specified compliance timeframe. This AD is an amendment to previous directives and is effective from 4 September 2003, following its notification in the Commonwealth of Australia Gazette on 13 August 2003.
Key Provisions
The Civil Aviation Safety Regulations 1998, under Part 39 - 105, include specific Airworthiness Directives (ADs) that pertain to the safety and maintenance of aircraft. One such AD, AD/B767/96 Amdt 2, targets Boeing 767 Series Aeroplanes, specifically models 767-200, -300, and -300F, with line numbers ranging from 1 to 710. This AD focuses on the trailing edge flap's hinge fitting assembly bolts, requiring actions to be taken to correct any unsafe conditions related to these components (section 1).
The directive mandates that the action specified in the requirement section must be adhered to when certain circumstances arise. The requirement section refers to the technical specifications outlined in FAA AD 2003-09-08 Amdt39-13137, which details the necessary inspections and actions to be taken to address potential failures in the trailing edge flap hinge fitting assembly bolts (section 2). Boeing Alert Service Bulletin 767-27A0151 Revision 4 and Service Bulletin 767-27A0155 Revision 2 are also referenced to provide additional guidance.
The obligations imposed by this AD require aircraft operators to comply with the outlined requirements within a specified timeframe, which has been revised to 7 August 2003 as per the requirement document. The AD itself became effective on 4 September 2003. Non-compliance with the AD could result in serious safety risks, including potential structural failure of the trailing edge flaps, leading to severe damage and possibly catastrophic outcomes (section 3).
Failure to comply with the AD could result in significant consequences, both legally and in terms of safety. While the specific penalties are not detailed within this AD, non-compliance with Civil Aviation Safety Regulations can generally lead to enforcement actions by the Civil Aviation Safety Authority (CASA). This could include fines, the grounding of aircraft, or other regulatory actions deemed necessary to ensure compliance and maintain aviation safety standards (section 4).