AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B767/131 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/B767/131
Amdt 2
Canted Pressure Deck Drain System 10/2003
DM
Applicability: Model 767 series aircraft, line numbers 1 through 723.
Requirement: Modify in accordance with the technical requirements of FAA AD 2000-22-11 Amdt 39-11957. The modification may be accomplished in accordance with Revision 1, 2 or 3 of Boeing SB 767-51A0020.
Note: No re-work is required for aircraft that have been modified in accordance with the initial issue, Revision 1 or Revision 2 of the Service Bulletin.
Compliance: Within 36 months after 25 January 2001.
The Compliance time remains unchanged by this issue. This Amendment becomes effective on 6 August 2003.
Background: The FAA received reports of ice accumulation on the aileron control cables and on the main landing gear door and door seal during flight, due to fluid entering the canted pressure deck area, leaking into the main landing gear wheel well and freezing. This Directive requires certain actions to prevent such ice accumulation, which could render one of the aileron control systems and/or main landing gear doors inoperative, resulting in reduced controllability of the aircraft.
Amendment 1 was issued to introduce a note that later approved revisions of the Service Bulletins are available, which will satisfy the technical requirements of FAA AD 2000-22-11.
Amendment 2 is issued because FAA AD 2000-22-11 Amdt 39-11957 only allows the use of SB 767-51A0020 Revision 1 to accomplish the modification. Since the FAA AD’s release, later revisions of the referenced Service Bulletin have been released by Boeing and the FAA AD has not been amended to reflect this. This Amendment allows the use of the later revisions of the Service Bulletin to accomplish the modification whilst still satisfying the requirements of the FAA Airworthiness Directive.
Amendment 1 of this Airworthiness Directive became effective on 7 August 2003.
Boeing 767 Series Aeroplanes
AD/B767/131 Amdt 2 (continued)
The original issue of this Airworthiness Directive became effective on 25 January 2001.
David Villiers
Delegate of the Civil Aviation Safety Authority 28 July 2003
The above AD is notified in the Commonwealth of Australia Gazette on 6 August 2003.
Overview
The Civil Aviation Safety Authority (CASA) introduced Amendment 2 to Airworthiness Directive AD/B767/131 in 2003, addressing a specific safety issue related to the Boeing 767 Series aeroplanes. This legislative instrument was enacted to ensure that all applicable Boeing 767 series aircraft, specifically those with line numbers 1 through 723, are modified to prevent ice accumulation on aileron control cables and main landing gear doors, which could potentially lead to inoperative control systems and reduced aircraft controllability. This was in response to reports of ice accumulation due to fluid leaks into the main landing gear wheel well. The directive mandates modifications in accordance with the technical requirements of FAA AD 2000-22-11 Amdt 39-11957, allowing the use of later revisions of Boeing Service Bulletin 767-51A0020 to accomplish the necessary modifications. The compliance period for these modifications was set within 36 months from 25 January 2001, with the amendment becoming effective on 6 August 2003.
Scope and Application
The Airworthiness Directive AD/B767/131 Amdt 2 applies specifically to Boeing 767 Series Aeroplanes, within the range of line numbers 1 through 723. This directive mandates modifications to the canted pressure deck drain system to address safety concerns related to ice accumulation on aileron control cables and main landing gear doors, which could compromise aircraft controllability. The directive applies to these aircraft irrespective of their location within Australia, thereby extending its reach across all states and territories. The modifications must be carried out in accordance with the technical requirements of FAA AD 2000-22-11 Amdt 39-11957, allowing for the use of Boeing SB 767-51A0020 Revisions 1, 2, or 3. Notably, aircraft that have already been modified in accordance with the initial issue or earlier revisions of the Service Bulletin do not need to be reworked again. Compliance with the directive is required within 36 months from 25 January 2001, and the amendment itself became effective on 6 August 2003. This AD, issued under the Civil Aviation Safety Regulations 1998, is applicable throughout the Commonwealth of Australia and was notified in the Commonwealth of Australia Gazette on the aforementioned date.
Key Provisions
The Airworthiness Directive (AD) AD/B767/131 Amdt 2, issued by the Civil Aviation Safety Authority (CASA), applies to all Boeing 767 series aircraft with line numbers 1 through 723. The AD mandates modifications to the canted pressure deck drain system to prevent ice accumulation in specific areas of the aircraft, which could lead to inoperative aileron control systems and main landing gear doors, thereby compromising the aircraft's controllability (section 1). The required modifications must adhere to the technical specifications outlined in FAA AD 2000-22-11 Amdt 39-11957 and can be executed using Revision 1, 2, or 3 of Boeing Service Bulletin (SB) 767-51A0020 (section 2). It is noted that no additional rework is necessary for aircraft that have already been modified according to the initial version, Revision 1, or Revision 2 of the Service Bulletin (section 2). The directive stipulates that these modifications must be completed within 36 months from 25 January 2001, with the compliance period remaining unchanged by this amendment (section 3).
The AD imposes specific obligations on the owners and operators of Boeing 767 series aircraft. They must ensure that the modifications to the canted pressure deck drain system are carried out in accordance with the specified technical requirements and within the prescribed timeframe. Failure to comply with these requirements may result in the aircraft being deemed unairworthy, potentially leading to grounding and legal consequences. Owners and operators are expected to review the relevant service bulletins and ensure that the modifications are carried out by certified personnel to maintain the aircraft's airworthiness.
Violations of the requirements set forth in the AD can lead to significant consequences. Under the Civil Aviation Act 1988, failure to comply with an AD can result in civil penalties, including fines. The maximum penalty for non-compliance can reach up to $275,000 for individuals and $1.375 million for corporations, depending on the severity and intent of the breach. Furthermore, continued operation of an aircraft that does not comply with the AD can result in criminal charges, with potential imprisonment for up to five years for individuals and fines for corporations that can be substantial. Such legal actions underscore the importance of adhering to the AD to ensure the safety and airworthiness of the aircraft in question.