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 issues the following Airworthiness Directive (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 747 Series Aeroplanes
AD/B747/295 Wing Foreflap Sequence Carriage Clevis
Bushings
11/2003
Applicability: Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D, -400F
and 747SR series aircraft; line numbers 1 through 1009, except 968, 999, 1004, and
1007.
Requirement: Action in accordance with the technical requirements of FAA AD 2003-16-08 Amdt 39-13261.
Note: Boeing Service Bulletins 747-57-2166 Revision 5 and 747-57-2166 Revision 6 refer.
Compliance: As specified in the Requirement document, with a revised effective date of 30 October 2003.
This Airworthiness Directive becomes effective on 30 October 2003.
Background: The FAA received a report of an incident where the foreflap of an inboard trailing edge flap departed the aircraft during flight and collided with the fuselage, resulting in a 5.5-foot by 3-foot hole in the fuselage. This Directive requires inspections of the clevis bushings on the inboard and outboard sequence carriages of the inboard trailing edge foreflaps; and eventual bushing replacement.
David Villiers
Delegate of the Civil Aviation Safety Authority 10 September 2003
The above AD is notified in the Commonwealth of Australia Gazette on 8 October 2003.
Overview
The Civil Aviation Safety Regulations 1998, enacted by the Parliament of Australia, aim to ensure the safety of civil aviation within Australia and its territories. This legislation, administered by the Civil Aviation Safety Authority (CASA), establishes a comprehensive regulatory framework for maintaining the airworthiness of aircraft and aeronautical products. Specifically, Part 39 of these Regulations, which includes Airworthiness Directives (AD), is designed to address safety issues by mandating corrective actions for specific aircraft models or components when deemed necessary. This particular AD, issued to address a reported incident of a foreflap detaching during flight and causing damage to a Boeing 747 series aircraft, exemplifies the regulatory approach to promptly rectify identified safety concerns, ensuring ongoing compliance with safety standards. The objective is to prevent recurrence of such incidents through mandated inspections and corrective measures, thereby enhancing overall aviation safety.
Scope and Application
The Airworthiness Directive issued by the Civil Aviation Safety Authority (CASA) under subregulation 39.1(1) of the Civil Aviation Safety Regulations 1998 applies specifically to the Boeing 747 series aeroplanes, including models 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D, -400F and 747SR, with applicable line numbers ranging from 1 to 1009, excluding 968, 999, 1004, and 1007. The directive mandates actions to rectify an unsafe condition concerning the wing foreflap sequence carriage clevis bushings, following the technical requirements outlined in FAA AD 2003-16-08 Amdt 39-13261, and references Boeing Service Bulletins 747-57-2166 Revision 5 and Revision 6. Compliance with this AD is to be achieved by 30 October 2003, as specified in the requirement document, and it became effective on the same date. The AD was published in the Commonwealth of Australia Gazette on 8 October 2003, thereby extending its application across the relevant jurisdictions under Australian law.
Key Provisions
The Civil Aviation Safety Regulations 1998 (CASR) under PART 39, specifically section 105, establish the Airworthiness Directive (AD) which is an authoritative instruction issued by the Civil Aviation Safety Authority (CASA). The AD mandates corrective actions to address safety concerns in specified aircraft, as detailed in AD/B747/295 (section 39.1(1)). This particular AD concerns Boeing 747 Series aeroplanes, specifically addressing wing foreflap sequence carriage clevis bushings (section 39.1(1)(a)-(c)). The directive applies to a range of 747 models, excluding certain line numbers (section 39.1(1)(a)). The directive requires actions in line with the technical specifications outlined in FAA AD 2003-16-08 Amdt 39-13261, with references to Boeing Service Bulletins 747-57-2166 Revision 5 and Revision 6 (section 39.1(1)(b)).
The AD imposes obligations on the operators and owners of the affected Boeing 747 aircraft to ensure compliance with the specified technical requirements. These obligations include conducting inspections of the clevis bushings on the inboard and outboard sequence carriages of the inboard trailing edge foreflaps, and replacing the bushings as necessary (section 39.1(1)(a)). Compliance with these requirements must occur within the timeframe specified in the requirement document, with a revised effective date of 30 October 2003 (section 39.1(1)(c)). The AD becomes effective on the date of its notification, which is 30 October 2003 (section 39.1(1)(d)).
Failure to comply with the AD can result in significant consequences. The directive is issued to address a reported incident where the foreflap of an inboard trailing edge flap detached during flight and collided with the fuselage, causing substantial damage (section 39.1(1)(a)). While specific penalties for non-compliance are not outlined in the AD itself, non-compliance with CASA directives can potentially lead to enforcement actions, fines, and the grounding of non-compliant aircraft, as well as legal consequences under aviation safety laws. The severity of these consequences underscores the importance of adhering to the AD to ensure the continued airworthiness of the affected aircraft.