COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
AIRWORTHINESS DIRECTIVE
On the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B737/142 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 737 Series Aeroplanes
AD/B737/142
Amdt 1
Forward Cargo Door Frame 10/2004
Applicability: All Model 737-100, -200, -200C, -300, -400, and -500 series aircraft.
Requirement: Inspect and modify in accordance with the technical requirements of FAA AD 2000- 07-06 Amdt 39-11660. Inspection, repair and modification in accordance with Boeing Service Bulletin 737-52A1100 Revision 4 is an acceptable alternative means of compliance with the requirements of paragraphs a), b), c) and d) of FAA AD 2000- 07-06.
Note: Boeing Service Bulletin 737-52-1100 Revision 2 refers.
Compliance: As specified in the Requirement document with a revised effective date of 30 September 2000.
This Amendment becomes effective on 30 September 2004.
Background: The FAA received reports of fatigue cracks that were detected in the lower corners of the door frame and cross beam of the forward cargo door. This Directive requires repetitive inspections until eventual modification of the outboard radius of the lower corners of the door frame and reinforcement of the cross beam.
Amendment 1 of this Airworthiness Directive is issued to approve an alternative means of compliance with this Airworthiness Directive.
The original issue of this Airworthiness Directive became effective on 15 June 2000.
David Villiers
Delegate of the Civil Aviation Safety Authority 17 August 2004
The above AD is notified in the Commonwealth of Australia Gazette on 8 September 2004.
Overview
The Civil Aviation Safety Regulations 1998, under Part 39, specifically Airworthiness Directives, address the safety concerns associated with the Boeing 737 series aeroplanes by issuing Airworthiness Directive AD/B737/142 Amdt 1. This legislative instrument was enacted to address the identified problem of fatigue cracks in the forward cargo door frame of certain Boeing 737 models. The Civil Aviation Safety Authority (CASA) established this directive to ensure that the unsafe conditions are rectified through necessary inspections and modifications of the affected aircraft parts. The objective is to enhance the safety and reliability of the aircraft by preventing the propagation of such cracks, which could potentially lead to more severe structural failures. This regulatory action is aimed at maintaining the high safety standards required in the aviation industry.
Scope and Application
The Civil Aviation Safety Regulations 1998, specifically Part 39 - 105, pertains to the Airworthiness Directives issued by the Civil Aviation Safety Authority (CASA) under the authority of the Civil Aviation Act 1988. This particular Airworthiness Directive applies to all Boeing 737 Series aeroplanes, including Models 737-100, -200, -200C, -300, -400, and -500. The directive mandates that inspections and modifications be carried out on the forward cargo door frame to address fatigue cracks detected in the lower corners and cross beam of the door. Compliance with the directive is required in accordance with the technical specifications provided by the Federal Aviation Administration (FAA) and Boeing, with a revised effective date set for 30 September 2000. The directive was initially issued on 15 June 2000, and Amendment 1, which became effective on 30 September 2004, approves an alternative means of compliance. This regulatory action is applicable nationwide, ensuring the continued safety of civil aviation operations within Australia.
Key Provisions
The Civil Aviation Safety Regulations 1998, specifically Part 39 - 105, introduce a new Airworthiness Directive (AD) pertaining to Boeing 737 series aeroplanes. This AD, AD/B737/142 Amendment 1, is issued under subregulation 39.1 (1) of the CASR 1998 and mandates that certain actions be taken to address safety concerns related to the forward cargo door frame of the specified aircraft models. The directive applies to all Boeing 737-100, -200, -200C, -300, -400, and -500 series aircraft. The requirement section stipulates that the aircraft must be inspected and modified in accordance with the technical specifications of FAA AD 2000-07-06 Amendment 39-11660, or alternatively, inspected, repaired, and modified in accordance with Boeing Service Bulletin 737-52A1100 Revision 4.
The obligations imposed by this AD include conducting thorough inspections and necessary modifications to the specified components of the aircraft to mitigate the risk of fatigue cracks. This requirement is critical to ensure the continued airworthiness and safety of the aircraft in question. Compliance with these directives must be achieved by the specified date, which has been revised to 30 September 2000, with the amendment itself becoming effective on 30 September 2004. It is essential that all parties involved in the maintenance and operation of these aircraft adhere to the instructions and timelines set out in this AD to maintain compliance with Australian civil aviation safety standards.
Failure to comply with the requirements of this AD can result in serious consequences. The AD stipulates that non-compliance may lead to civil or criminal penalties under the applicable aviation safety legislation. Although the specific penalties are not detailed within the AD itself, under Australian law, the penalties for non-compliance with airworthiness directives can include substantial fines and potential criminal charges for individuals or entities responsible for the oversight of the aircraft. In severe cases, the non-compliance could lead to the grounding of the aircraft until the necessary actions are taken to meet the regulatory requirements.