COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Boeing 747 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/B747/226 Wing Rear Spar Lower Chord Splice
Plate and Kick Fitting H-11 Bolts
7/2000
Applicability: Model 747 series aircraft, as listed in Boeing Service Bulletin 747-57A2309, Revision 1.
Requirement: Action in accordance with the technical requirements of FAA AD 2000-08-14 Amdt 39-11700.
Note: Accomplishment of the actions specified in paragraph (d) of the Requirement document constitutes terminating action for the repetitive inspection requirements of this Directive.
Compliance: As specified in the Requirement document for the initial and repetitive inspections, and bolt replacement, with a revised effective date of 13 July 2000.
This Airworthiness Directive becomes effective on 13 July 2000.
Background: The FAA received a report of broken bolts at the wing rear spar side-of-body on the lower chord splice plate. The actions specified by this Directive are intended to prevent cracking of the bolts due to stress corrosion, which could result in reduced structural integrity of the wing-to-body joint structure.
Bernard Malcolm Hole
Delegate of the Civil Aviation Safety Authority 31 May 2000
The above AD is notified in the Commonwealth of Australia Gazette on 14 June 2000.
Overview
The Civil Aviation Regulations 1998 (CAR 1998), specifically under PART 39 - 105, were enacted to establish and maintain high standards for the airworthiness of aircraft in Australia, ensuring safety and operational standards are met across the industry. This legislation was introduced to address the need for consistent and stringent regulations governing civil aviation to protect public safety and property, as well as to ensure the integrity of aircraft operations. The Civil Aviation Safety Authority (CASA), as the delegate of the Australian Parliament, issues Airworthiness Directives under subregulation 39.1 (1) of the CAR 1998 to mandate specific actions to correct unsafe conditions in aircraft. The policy objective behind these directives is to enhance the safety of civil aviation by requiring corrective actions to prevent potential hazards, such as the cracking of bolts due to stress corrosion, which could compromise the structural integrity of an aircraft.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the airworthiness directives issued by the Civil Aviation Safety Authority (CASA) to ensure the safety and compliance of aircraft operations within Australian jurisdiction. This particular Airworthiness Directive (AD) applies to Boeing 747 series aircraft, as identified in Boeing Service Bulletin 747-57A2309, Revision 1. The directive mandates specific corrective actions to be taken on the wing rear spar lower chord splice plate and kick fitting H-11 bolts to prevent cracking due to stress corrosion, which could compromise the structural integrity of the wing-to-body joint. The directive requires adherence to the technical requirements outlined in the FAA AD 2000-08-14 Amdt 39-11700, with compliance dates specified for initial and repetitive inspections, and bolt replacement, effective from 13 July 2000. This AD, which was issued by a CASA delegate, is a Commonwealth regulation, underscoring its applicability across the national airspace under Australian jurisdiction.
Key Provisions
The Civil Aviation Regulations 1998, under PART 39 - 105, specifically addresses airworthiness directives for certain aircraft types, including the Boeing 747 series. This legislation mandates the implementation of safety measures to ensure the aircraft remain airworthy and safe for operation. The main operative sections, particularly AD/B747/226, focus on addressing issues related to the wing rear spar lower chord splice plate and kick fitting H-11 bolts (section (a) of the applicability section). This directive requires adherence to the technical requirements outlined in FAA AD 2000-08-14 Amdt 39-11700 (section (a) of the requirement section). The directive applies to the Model 747 series aircraft listed in Boeing Service Bulletin 747-57A2309, Revision 1 (section (a) of the applicability section). The directive demands specific actions to be taken in accordance with the instructions in the requirement section and at the specified time in the compliance section (sections (b) and (c) of the compliance section).
The obligations imposed by this Act on the parties or entities it governs are stringent. Operators of Boeing 747 series aircraft must comply with the actions specified in the requirement section, which includes inspecting and replacing bolts as necessary to prevent stress corrosion. The directive mandates that these actions be completed by a specified date to ensure the structural integrity of the wing-to-body joint structure. Additionally, operators must follow the instructions outlined in the requirement section, which detail the technical specifications and procedures for the inspection and replacement of the bolts. Compliance with these directives is mandatory, and failure to adhere to the specified schedule and procedures could result in serious safety implications.
Breaching the obligations outlined in this Airworthiness Directive can lead to significant consequences. Non-compliance with the specified actions and timelines can result in serious safety risks, including the potential for structural failure of the wing-to-body joint. Furthermore, the Civil Aviation Safety Authority (CASA) may impose penalties on operators who fail to comply with the directive. While the specific penalties are not detailed in the text, non-compliance with aviation safety regulations can result in fines, suspension of operations, or other enforcement actions by CASA. Additionally, failure to adhere to these directives could lead to criminal charges if the non-compliance results in an aviation accident or incident.