AD/B747/204 - Number 1 Main Entry Door Cutout

Overview

The Civil Aviation Regulations 1998, specifically Part 39 - 105, incorporates Airworthiness Directives to ensure the safety of aircraft operations. This legislative instrument addresses the identified problem of fatigue cracks in the number 1 main entry door cutout of Boeing 747 series aeroplanes, line numbers 1 through 685. The Civil Aviation Safety Authority, under the authority of the Commonwealth of Australia, enacted this directive to mandate eddy current inspections in accordance with the technical requirements outlined in FAA AD 99-07-03 Amdt 39-11085. The directive became effective on 15 July 1999, with the aim of mitigating the risk of further structural failure by requiring initial and repetitive inspections, ensuring that any necessary repairs or modifications are performed to maintain airworthiness.

Scope and Application

The Civil Aviation Regulations 1998, as part of the legislative instrument F2006B03104, apply specifically to Boeing 747 series aircraft, covering line numbers 1 through 685, mandating compliance with airworthiness directives issued by the Civil Aviation Safety Authority. This particular Airworthiness Directive, AD/B747/204, pertains to the number 1 main entry door cutout, stipulating that an eddy current inspection must be performed in accordance with the technical requirements outlined in FAA AD 99-07-03 Amdt 39-11085. This directive is applicable nationwide, falling under the Commonwealth's jurisdiction and affecting the aviation industry by setting forth mandatory safety measures for these specific aircraft models. Compliance with the directive includes both initial and repetitive inspections, with the revised effective date set for 15 July 1999. The directive explicitly notes that completing the repair or preventative modifications as specified in ASB 747-53A2414 will terminate the repetitive inspection requirements for the modified components. Exclusions or exemptions from this directive are not explicitly mentioned in the text, implying that all specified aircraft within the given range must comply with the stipulated safety measures. The application of this directive extends through subordinate instruments which may further detail implementation procedures or additional requirements to ensure compliance. This legislative instrument underscores the importance of maintaining stringent safety standards within the civil aviation sector to ensure the continued airworthiness of Boeing 747 series aircraft.

Key Provisions

The main operative sections of this legislation pertain to Boeing 747 series aircraft, specifically those with line numbers 1 through 685 (AD/B747/204). It mandates that an eddy current inspection must be performed in accordance with the technical requirements outlined in FAA AD 99-07-03 Amdt 39-11085 (Requirement). This directive requires compliance through initial and repetitive inspections as specified in the requirement document, with a revised effective date of 15 July 1999 (Compliance). The directive itself becomes effective on 15 July 1999 (Effective Date). The obligations imposed by this Act require all operators of Boeing 747 series aircraft, within the specified line numbers, to conduct the required eddy current inspection to ensure the integrity of the number 1 main entry door cutout (Applicability). Operators must adhere to the technical specifications and protocols detailed in FAA AD 99-07-03 Amdt 39-11085 to meet the regulatory requirements. Additionally, any repairs or preventative modifications carried out in accordance with ASB 747-53A2414 will terminate the repetitive inspection requirements for the specific parts that have been repaired or modified (Terminating Action). Failure to comply with the provisions of this Airworthiness Directive can result in serious consequences. Any breach of the inspection and compliance requirements may lead to significant safety risks, potentially compromising the airworthiness of the aircraft. While the specific penalties are not detailed in the provided text, regulatory breaches of this nature can lead to enforcement actions, fines, or other civil or criminal penalties as prescribed by the Civil Aviation Safety Authority. The severity of these penalties can vary, but they are intended to ensure strict adherence to safety standards to protect public safety and aviation security.