AD/PL 12/11 Amdt 1 - Nose Wheel Pivot Pin - Inspection and Replacement

Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), are instrumental in ensuring the safe operation of aircraft within Australian airspace. Among the various amendments and directives, Part 39 - 105, which includes Airworthiness Directives, addresses specific issues to enhance aircraft safety. One such directive, AD/PL 12/11, pertains to the nose wheel pivot pin of Transavia PL 12 Series Aeroplanes, specifically targeting models with serial numbers prior to G576 that do not incorporate Service Bulletin No. 27. This directive was enacted to address potential safety risks associated with the nose wheel pivot pin, ensuring that any defects or improper maintenance could be identified and rectified to prevent in-flight incidents. The policy objective behind these regulations is to maintain the highest safety standards for all aircraft operating under Australian jurisdiction, thereby protecting both passengers and crew.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to all Transavia PL 12 series aeroplanes with serial numbers prior to G576 that have not incorporated Service Bulletin No. 27. This legislation is concerned with ensuring the airworthiness of the nose wheel pivot pin on these aircraft. It sets out requirements for inspecting and replacing the nose wheel pivot pin to ensure compliance with safety standards. The regulation is a part of the broader legislative framework managed by the Civil Aviation Safety Authority and is applicable across the Commonwealth of Australia. There are no exclusions, exemptions, or specific thresholds mentioned within this particular directive, and it is enforced strictly according to the specified timelines and conditions. The regulation is binding and must be adhered to by all relevant operators and maintenance personnel within the stipulated timeframes. The application of this directive may be extended or further defined through subordinate instruments issued by the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, includes the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, which govern the maintenance and operational standards of aircraft within Australia. Under this schedule, AD/PL 12/11 Amendment 1 focuses on the nose wheel pivot pin for the Transavia PL 12 Series aeroplanes. This directive mandates a series of checks and maintenance actions to ensure the safety of the aircraft in question. The directive applies to all models with serial numbers (S/Nos.) prior to G576 that do not incorporate Service Bulletin No. 27. The main operative sections of this directive require that the nosewheel pivot pin part number 6-24 be checked for the correct torque as outlined in the Transavia PL-12 Maintenance Manual (section 1). If the torque is found to be incorrect, the pivot pin must be replaced (section 2). Additionally, the pivot pin must be removed and inspected for wear, cracks, and signs of abnormal loading (section 3). Compliance with these provisions must occur within specific timeframes: the torque check must be performed within 10 hours of time in service after 10 September 1973, the replacement must occur before further flight, and the inspection for wear, cracks, and abnormal loading must take place at the next inspection following the issuance of a maintenance release completed after 10 September 1973 and thereafter at intervals not exceeding 100 hours of time in service. The obligations imposed by these regulations are clear and designed to ensure ongoing airworthiness and safety. Operators and maintenance personnel must adhere strictly to the timelines and procedures specified. They are required to verify the torque of the nosewheel pivot pin, replace any pin that does not meet the specified torque, and conduct thorough inspections for signs of wear, cracks, or abnormal loading. These requirements necessitate that the aircraft be grounded and maintenance performed as necessary to meet the mandated standards. Failure to comply with these directives can result in severe consequences. The Civil Aviation Regulations 1998 provide for both civil and criminal penalties for non-compliance. Operators and maintenance personnel who fail to adhere to the airworthiness directives may face substantial fines and potential imprisonment. The exact penalties are not specified within the provided text, but they are typically significant, reflecting the critical importance of adhering to these safety measures to prevent accidents and ensure the safety of passengers and crew.