AD/B727/141 - Body Station 870 Terminal Fitting

Overview

The Civil Aviation Regulations 1998, specifically within Part 39, provides regulatory oversight for ensuring the safety of civil aviation in Australia. One such regulation is the Airworthiness Directive (AD) issued under the authority of the Civil Aviation Safety Authority (CASA) to address safety concerns identified in specific aircraft models. For instance, AD/B727/141 pertains to the Boeing 727 series aeroplanes, particularly targeting line numbers 001 through 875. This directive was enacted in response to reports of cracking and web separation in the Body Station 870 terminal fitting, as per the Federal Aviation Administration's (FAA) AD 91-24-11 Revision 1. The policy objective is to ensure the safety and airworthiness of the aircraft by requiring inspections, necessary modifications, and repairs as outlined, thereby mitigating the risk of in-flight failures. The AD mandates compliance with the FAA's technical requirements, referencing Boeing Service Bulletin 727-53-0194 for guidance. It specifies actions including inspections for cracks and web separation in the terminal fitting, cold working certain fastener holes, and either repairing or replacing the fitting if defects are found. The directive was issued with a revised effective date of 10 December 1992, highlighting the urgency and importance of addressing this safety issue. This legislative instrument aims to ensure that all relevant aircraft are maintained to the highest safety standards, reducing the risk of in-flight incidents related to structural integrity.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the application of Airworthiness Directives (AD) issued by the Civil Aviation Safety Authority (CASA) for the maintenance and safety standards of aircraft within Australia. This particular AD, AD/B727/141, applies to Boeing 727 series aeroplanes, specifically those with line numbers ranging from 001 through 875. The directive mandates compliance with the technical requirements of the Federal Aviation Administration (FAA) AD 91-24-11 Revision 1, which addresses issues such as cracking and web separation of the Body Station 870 terminal fitting. The compliance must be conducted in accordance with the Requirement Document, with a revised effective date set for 10 December 1992. Boeing Service Bulletin 727-53-0194 is referenced for further guidance. The geographic reach of this regulation is national, applying to all operators within the Commonwealth of Australia. There are no exclusions, exemptions, or thresholds specified within the AD itself, but the application may be extended or restricted through subordinate instruments issued by CASA.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, includes a schedule of airworthiness directives that govern the maintenance and safety standards for aircraft, such as the Boeing 727 series aeroplanes. One such directive, AD/B727/141, pertains to the Body Station 870 Terminal Fitting. This directive applies to all Model 727 series aircraft, from line number 001 through 875 (105.01). The requirement is to undertake actions in accordance with the technical requirements set out in FAA AD 91-24-11 Revision 1, with Boeing Service Bulletin 727-53-0194 referenced for additional guidance (105.02). This directive imposes specific obligations on the parties and entities it governs. Primarily, it mandates an inspection for any signs of cracking and web separation in the terminal fitting located at Body Station 870. This inspection must be carried out meticulously to ensure the structural integrity of the fitting. Additionally, certain fastener holes are required to be cold worked as part of the directive's compliance measures (105.03). Should the inspection reveal any defects, the terminal fitting must be either repaired or replaced in accordance with the specified requirements, ensuring that the aircraft meets the necessary safety standards (105.04). Failure to comply with the provisions of this directive can result in significant consequences. Civil and criminal penalties may apply for non-compliance, depending on the severity and intent of the breach. The specific penalties are not detailed within the text, but under Australian aviation law, non-compliance can lead to substantial fines and potential criminal charges for those responsible. The exact penalties would depend on the specific breach and the discretion of the court or regulatory authority (105.05).