COMMONWEALTH OF AUSTRALIA (Civil Aviation 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 revokes Airworthiness Directive (AD) AD/B747/243 and issues the following 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.
Boeing 747 Series Aeroplanes
AD/B747/243
Amdt 1
Midspar Fuse Pin Retention 3/2002
Applicability: Model 747 series aircraft, line numbers 1 through 1046 that have accomplished FAA Airworthiness Directives 95-10-16 (AD/B747/153), 95-13-05 (AD/B747/154), 95-13-
06, or 95-13-07; and line numbers 1047 through 1271.
Requirement: Action in accordance with the technical requirements of FAA AD 2001-23-15 Amdt 39-12514.
Compliance: As specified in the Requirement document with a revised effective date of 21 March 2002.
This amendment becomes effective on 21 March 2002.
Background: The FAA received several reports of loose primary retention nuts of the midspar fuse pins of the inboard and outboard engine struts of certain Model 747 series aircraft.
Loss of primary retention capability could result in loss of secondary retention capability of the fuse pins, migration of the fuse pins, and consequent loss of the strut and engine from the aircraft.
Amendment 1 is issued in response to a new FAA AD which retains the current inspection requirements but mandates accomplishment of the previously optional terminating modification.
The original issue of this Airworthiness Directive became effective on 17 May 2001.
David Alan Villiers
Delegate of the Civil Aviation Safety Authority 8 February 2002
The above AD is notified in the Commonwealth of Australia Gazette on 27 February 2002.
Overview
The Civil Aviation Regulations 1998, which were enacted by the Parliament of the Commonwealth of Australia, aim to provide comprehensive regulations governing civil aviation safety. These regulations were introduced to address the need for standardised safety protocols and procedures within the aviation industry to ensure the safety of passengers, crew, and the general public. One specific legislative instrument under these regulations is the Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA). This particular AD, AD/B747/243 Amdt 1, pertains to the Boeing 747 series aeroplanes and was enacted in response to reports of loose primary retention nuts of the midspar fuse pins, which could potentially lead to significant safety hazards. The AD mandates corrective actions to ensure the continued airworthiness of the affected aircraft, aligning with the overarching policy objective of maintaining high safety standards in civil aviation.
Scope and Application
The Civil Aviation Regulations 1998, under Part 39, specifically Airworthiness Directives, govern the safety standards for aircraft and aeronautical products in Australia. These regulations apply to the entire Commonwealth of Australia, imposing mandatory requirements on specific aircraft models to ensure their airworthiness. For instance, the Airworthiness Directive AD/B747/243, as amended, targets Boeing 747 series aircraft, specifically those within line numbers 1 through 1046 that have completed certain FAA directives, and those within line numbers 1047 through 1271. The directive mandates actions to address the unsafe condition concerning the midspar fuse pin retention, requiring compliance with the technical specifications outlined in FAA AD 2001-23-15. This directive ensures that all specified aircraft meet safety standards by enforcing mandatory inspections and modifications. The AD becomes effective on the specified date, and its compliance is overseen by the Civil Aviation Safety Authority delegate. Any deviation from these requirements can result in significant safety risks, including the potential loss of engines from the aircraft.
Key Provisions
The Airworthiness Directive (AD) AD/B747/243 under the Civil Aviation Regulations 1998 (CAR 1998) specifically addresses the maintenance and safety of the Boeing 747 series aircraft, particularly focusing on the midspar fuse pin retention. This AD applies to Boeing 747 series aircraft with line numbers ranging from 1 to 1046 that have already implemented certain Federal Aviation Administration (FAA) directives (sections 1 and 2). The directive mandates corrective actions in response to reports of loose primary retention nuts on midspar fuse pins, which could potentially lead to serious safety issues such as the loss of engine struts (section 3).
The AD imposes specific obligations on aircraft operators and maintenance personnel. They are required to adhere to the technical requirements outlined in FAA AD 2001-23-15 Amendment 39-12514, ensuring the actions are performed in accordance with the instructions provided and within the specified timeline (section 4). Compliance with this directive is critical, as it involves mandatory modifications to the midspar fuse pin retention system to prevent safety hazards.
Failure to comply with the provisions of this AD can result in significant consequences. The Civil Aviation Safety Authority (CASA) can impose penalties on operators or entities that do not adhere to the requirements set out in the AD. While the specific penalties are not detailed within this directive, non-compliance with ADs generally can lead to enforcement actions, including fines and potential grounding of the aircraft until the required actions are completed. These actions are taken to ensure the highest standards of aviation safety are maintained.