COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Boeing 747 Series Aeroplanes
AD/B747/92 Horizontal Stabiliser 6/91
Applicability: Model 747 series with line numbers 002 through 226.
Requirement: Action in accordance with the technical requirements of FAA AD 91-05-17 Amdt 39- 6917.
Note: Boeing Alert SB 747-53A 2332 refers.
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 additional cracking detected by the inspections required by a current Airworthiness Directive. This condition, if not corrected, could result in loss of the horizontal stabilizer. Effective date required by the FAA is extended by two months.
Overview
The Civil Aviation Regulations 1998, specifically Part 39 - 105, address the scheduling of airworthiness directives for various aircraft, including the Boeing 747 series aeroplanes. Enacted by the Parliament of the Commonwealth of Australia, this legislation aims to ensure the safety and airworthiness of aircraft operating within Australia. The Airworthiness Directive (AD) AD/B747/92 targets the Boeing 747 series aeroplanes with line numbers ranging from 002 to 226, stipulating corrective action to address a noted issue with the horizontal stabiliser. This directive mandates compliance with the Federal Aviation Administration's (FAA) technical requirements, as outlined in FAA AD 91-05-17 Amdt 39-6917, with a compliance timeline adjusted to align with Australian regulations. The policy objective is to mitigate the risk of potential failure of the horizontal stabiliser, thereby maintaining the safety standards for aviation operations within Australia.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to the Boeing 747 series aeroplanes with line numbers ranging from 002 through 226. This legislation mandates adherence to the technical requirements outlined in FAA AD 91-05-17 Amendment 39-6917, ensuring the safety and airworthiness of these aircraft. Australian registered Boeing 747 aeroplanes must comply with the specified requirements, which include the implementation of corrective actions to address reported instances of cracking in the horizontal stabiliser, as identified in Boeing Alert SB 747-53A 2332. The compliance date for Australian registered aircraft is set as 13 June 1991, with the effective date extended by two months from the initial FAA requirement to allow for adequate implementation of the safety measures. This legislation ensures that all applicable aircraft are maintained to the required safety standards, mitigating the risk of loss of the horizontal stabiliser.
The application of this regulation extends to all operators and owners of Boeing 747 series aeroplanes within the specified line numbers, ensuring they undertake the necessary actions to maintain airworthiness. The regulation’s geographic reach is national, applying to all aircraft registered in Australia, and it enforces compliance with international standards set by the FAA. There are no specific exclusions or exemptions mentioned in the text, implying that all applicable aircraft must adhere to the directive. The scope of this legislation is reinforced through subordinate instruments which may further detail implementation procedures and compliance verification methods, ensuring the safety and regulatory adherence of the aircraft within Australian airspace.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105, incorporates Airworthiness Directives for various aircraft types, including the Boeing 747 series aeroplanes. Section AD/B747/92 pertains to the horizontal stabiliser and applies to Model 747 series aeroplanes with line numbers ranging from 002 through 226 (section 1). The directive mandates compliance with the technical requirements outlined in FAA AD 91-05-17 Amendment 39-6917 (section 2). Boeing Alert Service Bulletin 747-53A 2332 is referenced to assist with the implementation of the directive (section 3).
The obligations under this directive require aircraft operators to ensure that the horizontal stabiliser of their Boeing 747 aeroplanes is inspected and repaired or replaced as necessary to meet the technical standards set by FAA AD 91-05-17 Amdt 39-6917 (section 4). The requirement document specifies compliance details and a revised effective date of 13 June 1991 for aircraft registered in Australia (section 5). Operators must adhere to these specifications to maintain the airworthiness of their aircraft.
Failure to comply with the provisions of this Airworthiness Directive may result in severe consequences. Non-compliance could lead to the potential loss of the horizontal stabiliser, which could compromise the safety and stability of the aircraft (section 6). The Federal Aviation Administration (FAA) has received reports of additional cracking in the horizontal stabiliser that, if unaddressed, could result in catastrophic failure during flight (section 7). Therefore, it is imperative that all operators follow the directive to prevent such risks.
There are no specific penalties mentioned in the Civil Aviation Regulations for non-compliance with this directive. However, the consequences of failing to adhere to airworthiness directives can be severe, including grounding of the aircraft, potential for accidents, and legal actions against the operator (section 8). The safety and operational standards set by these directives are crucial, and any breach can lead to serious safety implications and regulatory scrutiny.