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/B747/291 Nose Wheel Well Panel Rivets 8/2003
Applicability: Model 747-400 and -400F series aircraft, line numbers 1141 through 1183. Requirement: Action in accordance with the technical requirements of FAA AD 2003-10-09 Amdt
39-13154.
Note: Boeing Alert Service Bulletin 747-53A2472, including Appendix A refers.
Compliance: As specified in the Requirement document, with a revised effective date of 7 August 2003.
This Airworthiness Directive becomes effective on 7 August 2003.
Background: The FAA requires inspection of the rivets in the forward, top, and side panels of the nose wheel well for discrepancies; and eventual terminating action. Discrepancies of rivets in the nose wheel well panels due to incorrect heat treatment, could result in failure of the rivets and consequent reduced structural integrity of the panels, and possible rapid depressurisation of the aircraft.
David Punshon
Delegate of the Civil Aviation Safety Authority 27 June 2003
The above AD is notified in the Commonwealth of Australia Gazette on 16 July 2003.
Overview
The Civil Aviation Safety Regulations 1998, specifically under Part 39 - 105, address the need to ensure the airworthiness of aircraft by issuing safety directives. This particular legislative instrument, F2006B03185, pertains to Boeing 747 Series Aeroplanes and specifically targets the issue of nose wheel well panel rivets. The Airworthiness Directive (AD) issued under the authority of the Civil Aviation Safety Authority (CASA) aims to correct an unsafe condition identified in certain Boeing 747-400 and -400F series aircraft, specifically those with line numbers 1141 through 1183. The directive mandates that inspections and necessary actions be performed to address discrepancies in the rivets due to incorrect heat treatment, which could compromise the structural integrity of the nose wheel well panels and potentially lead to rapid depressurisation. The policy objective is to maintain the highest standards of aviation safety by ensuring that all aircraft meet specified airworthiness criteria.
Scope and Application
The Civil Aviation Safety Regulations 1998, specifically PART 39 - 105, under the Civil Aviation Safety Authority, mandates the issuance of Airworthiness Directives (ADs) to ensure the safety of aviation. This particular AD, numbered AD/B747/291, applies to the Boeing 747 Series Aeroplanes, specifically the Model 747-400 and -400F series within the line numbers 1141 through 1183. The directive requires corrective actions concerning the nose wheel well panel rivets, as per the technical requirements outlined in the FAA AD 2003-10-09 Amdt39-13154. The directive is effective from 7 August 2003, aligning with the compliance date specified in the requirement document. The AD mandates inspection and necessary actions to rectify discrepancies in the rivets caused by incorrect heat treatment, which could lead to structural failures and potential rapid depressurisation of the aircraft. This regulation extends throughout the Commonwealth of Australia and applies to all relevant aircraft within the specified series and line numbers.
Key Provisions
The Civil Aviation Safety Regulations 1998 (CASR), particularly Part 39 - 105, includes a schedule of airworthiness directives which are issued under subregulation 39.1 (1) of CASR 1998. These directives aim to ensure that aircraft and aeronautical products are maintained in a safe condition. For instance, Airworthiness Directive AD/B747/291 pertains specifically to Boeing 747 Series Aeroplanes, focusing on the nose wheel well panel rivets. This directive applies to Model 747-400 and -400F series aircraft, specifically those with line numbers 1141 through 1183. The directive mandates actions that are considered necessary to correct the unsafe condition of the rivets in the nose wheel well panels, which can be due to incorrect heat treatment, potentially leading to structural failure and rapid depressurisation of the aircraft.
The obligations imposed by this Airworthiness Directive include ensuring that the specified action, as outlined in the requirement section, is taken in accordance with the technical requirements of FAA AD 2003-10-09 Amdt39-13154. This involves inspecting the rivets in the forward, top, and side panels of the nose wheel well for any discrepancies and taking corrective action as necessary. Compliance with this directive must be achieved by the specified date mentioned in the compliance section, which, for this directive, has been revised to 7 August 2003. The directive explicitly references Boeing Alert Service Bulletin 747-53A2472, including Appendix A, as a guide for the required actions.
Failure to comply with the provisions of the Airworthiness Directive can result in significant civil and criminal consequences. Although the specific penalties are not detailed in the provided text, the general framework of the CASR includes potential penalties for non-compliance. These can range from substantial fines to imprisonment, depending on the severity of the breach. The exact penalties would be determined based on the specific regulations and the nature of the non-compliance. Ensuring adherence to these directives is crucial for maintaining the safety and airworthiness of the aircraft involved.