AD/B727/34 - Stabilizer Hinge Bearings and Bushings - Replacement

Overview

The Civil Aviation Regulations 1998, as amended, include specific directives aimed at ensuring the safety and reliability of aircraft within Australian airspace. This legislation, enacted by the Australian Parliament, is designed to fill critical gaps in the regulation of civil aviation by establishing comprehensive safety standards and compliance requirements for aircraft operators. One such directive, AD/B727/34, pertains to Boeing 727 series aeroplanes and mandates the replacement of stabilizer hinge bearings and bushings to mitigate potential safety risks. The policy objective behind this directive is to ensure the ongoing airworthiness of these aircraft by addressing specific structural components that could compromise stability and control. The Civil Aviation Safety Authority is the key regulatory body responsible for enforcing these directives and ensuring that all applicable aircraft meet the necessary safety standards.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, issued under the authority of the Civil Aviation Safety Authority, pertains to the maintenance and operational standards of Boeing 727 series aeroplanes. The regulation mandates the replacement of stabilizer hinge bearings and bushings in all models of the Boeing 727 series as per Boeing Service Bulletin No. 55-29. The directive applies to any person or entity that operates or maintains Boeing 727 aircraft within the jurisdiction of the Commonwealth of Australia, ensuring that all such aeroplanes comply with the specified safety standards. Compliance with this directive is required immediately, underscoring the importance of timely maintenance actions to prevent potential safety hazards. The regulation does not explicitly exclude any specific geographic areas or operational contexts within Australia but applies uniformly across the nation, reflecting the national scope of the regulatory framework.

Key Provisions

The Civil Aviation Regulations 1998, under PART 39 - 105, mandate specific airworthiness directives for certain types of aircraft, including the Boeing 727 series aeroplanes. Section AD/B727/34 pertains to the stabilising components of these aircraft, specifically the stabilizer hinge bearings and bushings (section 1). This directive requires that these components be replaced as a matter of urgency to ensure the continued safety and airworthiness of the aeroplanes (section 2). Compliance with this directive is mandated "forthwith", meaning without delay (section 3). The directive references Boeing Service Bulletin No. 55-29 as the document detailing the specific procedures and specifications for the replacement of the stabilizer hinge bearings and bushings (section 4). The Act imposes several obligations on the operators of Boeing 727 series aeroplanes. Primarily, it requires that all operators comply with the directive to replace the stabilizer hinge bearings and bushings as outlined in Boeing SB No. 55-29 (section 5). This involves conducting a thorough inspection of the specified components and replacing them if they do not meet the specified standards or if there are any signs of wear or damage (section 6). Operators must ensure that all maintenance and replacement work is carried out by qualified personnel and in accordance with the procedures detailed in the referenced service bulletin (section 7). Furthermore, operators must keep detailed records of all inspections and replacements performed to demonstrate compliance with the directive (section 8). Failure to comply with the airworthiness directive can result in significant consequences. Under the Civil Aviation Regulations 1998, non-compliance can lead to civil penalties, including fines and potential legal action (section 9). The maximum penalty for non-compliance may include substantial financial penalties, which can vary based on the severity and frequency of the offence (section 10). Additionally, continued operation of an aeroplane that does not comply with the airworthiness directive may result in the aircraft being grounded, preventing it from being used until the required maintenance is performed (section 11). These measures are in place to ensure the highest standards of safety and airworthiness are maintained within the civil aviation sector.