COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Boeing 747 Series Aeroplanes
AD/B747/93 Section 42 Fuselage Frame Web 6/91
Applicability: Model 747 series with line numbers 001 through 045.
Requirement: Action in accordance with the technical requirements of FAA AD 91-06-03 Amdt 39- 6923.
Compliance: As specified in the Requirement Document with a revised effective date of 13 June 1991 for Australian registered aircraft.
Background: The FAA has received reports of multiple cracks in the Section 42 frames. This condition, if not corrected, could result in rapid depressurisation of the aircraft.
Overview
The Civil Aviation Regulations 1998, as amended, incorporate a comprehensive set of rules and directives essential for maintaining safety standards in Australia's civil aviation sector. Part 39, specifically, includes a schedule of airworthiness directives aimed at ensuring that aircraft meet necessary safety criteria. One such directive, AD/B747/93, addresses the critical issue of multiple cracks in the Section 42 fuselage frame web of Boeing 747 series aeroplanes, particularly those with line numbers 001 through 045. This directive mandates compliance with the technical requirements set forth in FAA AD 91-06-03 Amdt 39-6923, with a revised effective date of 13 June 1991 for Australian registered aircraft. The policy objective is to mitigate the risk of rapid depressurisation, thereby enhancing flight safety and safeguarding passenger and crew welfare. Enacted by the Australian Government, these regulations are intended to bridge the gap between international safety standards and local regulatory frameworks.
Scope and Application
The Civil Aviation Safety Authority (CASA) has issued an Airworthiness Directive (AD) under the Civil Aviation Regulations 1998, specifically within Part 39 - 105, concerning Boeing 747 series aeroplanes, identified by line numbers 001 through 045. This directive mandates compliance with the technical requirements outlined in the Federal Aviation Administration (FAA) AD 91-06-03 Amendment 39-6923. The directive applies to all Boeing 747 series aircraft registered in Australia and requires corrective action to address multiple cracks in the Section 42 fuselage frame web, which, if left unaddressed, could lead to rapid depressurisation of the aircraft. This AD ensures that Australian-registered Boeing 747 aeroplanes meet the necessary safety standards to prevent such critical failures, with compliance to be demonstrated in accordance with the specified Requirement Document and the revised effective date of 13 June 1991. The directive applies specifically to the identified aircraft models and line numbers, and compliance must be achieved to maintain airworthiness and safety standards.
Key Provisions
The Civil Aviation Regulations 1998, particularly Part 39-105, mandate specific actions for the maintenance and safety of Boeing 747 series aeroplanes. Section 42, concerning the Fuselage Frame Web, requires compliance with FAA AD 91-06-03 Amendment 39-6923 for models 747 with line numbers 001 through 045 (Section 42). This means that these aircraft must adhere to the technical requirements outlined in the Amendment, which were revised to take effect from 13 June 1991 for Australian-registered aircraft. This directive is critical for ensuring the structural integrity of the aircraft fuselage, particularly in preventing rapid depressurisation which could occur due to undetected cracks in the Section 42 frames.
Operators and owners of Boeing 747 series aeroplanes must ensure that their aircraft comply with the specified Airworthiness Directives. This involves conducting regular inspections and maintenance checks to identify and rectify any potential issues with the fuselage frame web. The compliance process requires adherence to the Requirement Document provided, which details the necessary steps and procedures to meet the safety standards set forth by the Civil Aviation Safety Authority (CASA). It is imperative that all actions taken are in accordance with these technical requirements to maintain the airworthiness of the aircraft.
Failure to comply with the provisions outlined in the Civil Aviation Regulations 1998, specifically Part 39-105, can result in severe consequences. Non-compliance with the Airworthiness Directives for Boeing 747 series aeroplanes can lead to significant safety risks, potentially resulting in aircraft accidents or incidents. Under the Civil Aviation Act 1988, operators found in breach of these regulations may face penalties. The severity of the penalties can vary, but they may include fines and, in serious cases, criminal charges against individuals responsible for the oversight or management of the aircraft. Such penalties underscore the importance of strict adherence to the mandated safety directives to protect both the crew and passengers on board.