COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Boeing 767 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/B767/119 Thrust Reverser Deactivation Pins 6/2000
Applicability: Model 767 series aircraft powered by PW4000 series engines.
Requirement: Replace the deactivation pin, pin bushing in the aft cascade mounting ring, and insert flange on each thrust reverser half with new improved components in accordance with Boeing Alert Service Bulletin 767-78A0080 dated February 25, 1999.
Note: FAA AD 99-26-02 Amdt 39-11462 refers.
Compliance: Unless previously carried out, within 18 months time in service from the effective date of this Airworthiness Directive.
This Airworthiness Directive becomes effective on 15 June 2000.
Background: Partial deployment of deactivated thrust reversers has occurred during landing. Actions mandated by this Directive are intended to prevent failure of the thrust reverser deactivation pins, which could result in an in-flight deployment of the thrust reverser. Should this occur controllability of the aircraft will be reduced.
Eugene Paul Holzapfel
Delegate of the Civil Aviation Safety Authority 5 May 2000
The above AD is notified in the Commonwealth of Australia Gazette on 17 May 2000.
Overview
The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, govern the safety and airworthiness of aircraft in Australian airspace. This legislation provides the legal framework within which the Civil Aviation Safety Authority (CASA) can issue Airworthiness Directives (AD) to address specific safety issues. The AD/B767/119, issued under subregulation 39.1 (1) of the Civil Aviation Regulations 1998, is an example of such a measure. Introduced in response to instances of partial deployment of deactivated thrust reversers during landing, the directive mandates actions to prevent failure of the thrust reverser deactivation pins, which could potentially result in in-flight deployment and reduced controllability of the aircraft. The policy objective of this AD is to enhance the safety of Boeing 767 series aircraft powered by PW4000 series engines by requiring the replacement of specified components within 18 months of the directive's effective date of 15 June 2000.
Scope and Application
This Airworthiness Directive applies to Boeing 767 series aircraft powered by Pratt & Whitney 4000 series engines, specifically targeting the thrust reverser system. The directive requires the replacement of certain components within the thrust reversers to mitigate the risk of partial deployment during landing, which could compromise the aircraft's controllability. The requirements of the AD include replacing the deactivation pin, pin bushing in the aft cascade mounting ring, and insert flange on each thrust reverser half with improved components as specified in Boeing Alert Service Bulletin 767-78A0080 dated February 25, 1999. This action must be taken within 18 months from the effective date of the AD, which is 15 June 2000. The AD was issued under subregulation 39.1 (1) of the Civil Aviation Regulations 1998 by a delegate of the Civil Aviation Safety Authority, and it was notified in the Commonwealth of Australia Gazette on 17 May 2000. This AD does not specify any exclusions or exemptions and is binding on all relevant aircraft within the Commonwealth.
Key Provisions
The Airworthiness Directive (AD) issued under subregulation 39.1 (1) of the Civil Aviation Regulations 1998 (CAR 1998) mandates specific actions to ensure the safe operation of Boeing 767 series aircraft powered by PW4000 series engines. According to the AD/B767/119 issued on 6 June 2000, the deactivation pin, pin bushing in the aft cascade mounting ring, and insert flange on each thrust reverser half must be replaced with new improved components as specified in Boeing Alert Service Bulletin 767-78A0080 dated 25 February 1999. This requirement aims to prevent the partial deployment of deactivated thrust reversers during landing, which could lead to an unsafe condition where the in-flight deployment of thrust reversers occurs, subsequently reducing the controllability of the aircraft.
The obligations under this directive include the replacement of the specified components on the thrust reversers of the Boeing 767 series aircraft. This must be carried out in accordance with the instructions provided in the Boeing Alert Service Bulletin 767-78A0080 and within the specified timeframe of 18 months from the effective date of the AD. The AD becomes effective on 15 June 2000, meaning that the mandated actions must be completed by 15 December 2001 for aircraft that have not already complied.
Failure to comply with this AD may result in civil or criminal consequences, depending on the severity of the non-compliance and its impact on aviation safety. The specific penalties are not detailed in the AD but generally, non-compliance with ADs under CAR 1998 can result in enforcement actions by the Civil Aviation Safety Authority (CASA), which may include fines and other regulatory actions. The maximum penalties for serious violations can be substantial, reflecting the critical nature of airworthiness directives in ensuring the safety of air travel.