COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Boeing 747 Series Aeroplanes
AD/B747/169
Amdt 1
Midspar Fuse Pin 9/97
Applicability: Model 747 series aircraft with line numbers 1 through 1046, equipped with Pratt and Whitney model PW4000 series engines, or General Electric model CF6-80C2 series engines, or Rolls Royce model RB211 series engines; on which fuse pins having part numbers 310U2301-101, -116, -117, or -120 ( “third generation “ fuse pins ) are installed at the midspar / spring beam fittings of the engine pylon; and on which modification of the nacelle strut and wing structure in accordance with Boeing ASB 747- 54A2156 or Boeing ASB 747-54A2157, as applicable, has not been accomplished.
Requirement: Inspect in accordance with the technical requirements of FAA AD 96-26-52 R1 Amdt 39-1002.
Compliance: Unless the initial inspection has already been accomplished, within 15 days after 15 January 1997; thereafter as specified in the requirement document.
The compliance of the initial issue of this directive remains unchanged, while the repetitive inspection frequency as specified in the new requirement document, is changed by this issue.
This amendment becomes effective on 14 August 1997.
Background: The FAA received a report of a fuse pin which had migrated out of an inboard spring beam fitting on the number 1 engine pylon of a model 747-400 aircraft. In addition, the mating nut to this pin had backed off from full engagement with the pin.
Amendment 1 is issued in response to the issue of a new FAA AD which decreases the frequency of inspections, as a result of new data provided by the manufacturer.
The original issue of this airworthiness directive became effective on 15 January 1997.
Overview
The Civil Aviation Regulations 1998, under Part 39 - 105, includes specific airworthiness directives that govern the safety standards for various aircraft models. One such directive, AD/B747/169 Amendment 1, pertains to Boeing 747 series aeroplanes and was enacted to address issues related to fuse pins at the midspar/spring beam fittings of the engine pylon. This amendment responds to reports of fuse pin migration and mating nut disengagement on the number 1 engine pylon of a Boeing 747-400 aircraft. The directive applies to model 747 series aircraft with certain engine types and fuse pin configurations that have not undergone specified modifications. The policy objective of this directive is to ensure the continued airworthiness of affected aircraft by implementing revised inspection requirements, which were updated following new data from the manufacturer to decrease inspection frequency. This directive is issued by the Civil Aviation Safety Authority and aims to maintain high safety standards in civil aviation.
This legislative instrument, enacted by the Commonwealth of Australia, addresses a specific safety concern related to the structural integrity of Boeing 747 series aeroplanes. By setting forth detailed inspection requirements and timelines, it ensures that operators of affected aircraft comply with updated safety standards. The amendment to the original airworthiness directive, which became effective on 15 January 1997, was made to reflect new data and reduce the frequency of inspections, thereby enhancing operational efficiency while maintaining safety. The directive's compliance requirements mandate inspections within specific timeframes, ensuring that any issues are identified and rectified promptly.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning the Civil Aviation Safety Authority's schedule of airworthiness directives, applies to all Boeing 747 series aeroplanes with line numbers ranging from 1 to 1046. These aircraft must be equipped with either Pratt and Whitney model PW4000 series engines, General Electric model CF6-80C2 series engines, or Rolls Royce model RB211 series engines. The directive is pertinent to aircraft featuring fuse pins with specific part numbers (310U2301-101, -116, -117, or -1120) installed at the midspar/spring beam fittings of the engine pylon, provided that certain modifications of the nacelle strut and wing structure have not been carried out as per Boeing ASB 747-54A2156 or Boeing ASB 747-54A2157. The geographic reach of this regulation is national, applying uniformly across Australia under the Commonwealth's jurisdiction. Compliance requires inspection in accordance with the technical requirements of FAA AD 96-26-52 R1 Amdt 39-1002, with the initial inspection to be conducted within 15 days of 15 January 1997, and subsequent inspections as specified in the directive. The requirement document, which details inspection frequencies, has been amended to reflect new data provided by the manufacturer, reducing the frequency of inspections.
Key Provisions
The Civil Aviation Regulations 1998 (CAR), specifically Part 39 - 105, and the accompanying Schedule of Airworthiness Directives, mandates inspections for Boeing 747 series aircraft (sections 1 and 2). This requirement applies to model 747 aircraft with line numbers 1 through 1046, equipped with specific engines and fuse pins at the midspar/spring beam fittings of the engine pylon, unless certain modifications have been completed (section 3). The directive, AD/B747/169 Amendment 1, details that an inspection must be carried out in accordance with the technical requirements outlined in FAA AD 96-26-52 R1 Amdt 39-1002 (section 4). The compliance timeline stipulates that the initial inspection must be conducted within 15 days of 15 January 1997, with subsequent inspections following the frequency specified in the requirement document (section 5). The amendment to this directive, which alters the inspection frequency, took effect on 14 August 1997 (section 6).
The entities governed by these regulations, including aircraft operators and maintenance organisations, are obligated to ensure that all specified inspections are performed within the stipulated timeframes (section 5). Compliance with these directives is crucial for maintaining the airworthiness of the affected Boeing 747 aircraft. Failure to adhere to the inspection requirements can lead to severe consequences, including potential grounding of the aircraft and possible legal ramifications under the Civil Aviation Act 1988 and other related legislation.
Breaching the requirements set out in these Civil Aviation Regulations can result in significant penalties. Depending on the severity and nature of the non-compliance, penalties may include fines, enforcement actions, and potential criminal charges. The maximum penalties for non-compliance with airworthiness directives are detailed in the Civil Aviation Act 1988, where serious breaches may lead to substantial fines and imprisonment for corporate entities and individuals responsible for the oversight of the aircraft. Ensuring strict adherence to these directives is essential to avoid such repercussions.