AD/W620/2 - Wing Hinge Pins

Overview

The Civil Aviation Regulations 1998, as part of the broader legislative framework governing civil aviation in Australia, were enacted to ensure the safety and efficiency of air travel within the country. The regulations encompass numerous aspects of aviation operations, including airworthiness, licensing, and flight operations. Part 39, in particular, focuses on the airworthiness directives which mandate the necessary actions to maintain aircraft safety. The 1998 Regulations were introduced to address the need for a comprehensive and updated legal framework to govern civil aviation, following the amalgamation of various older regulations and incorporating international standards set by the International Civil Aviation Organization (ICAO). The objective is to ensure that all aircraft operating in Australian airspace meet stringent safety standards, thereby protecting passengers, crew, and the public. Specifically, the directive concerning Weatherly 620 Series Aeroplanes, issued under the Civil Aviation Regulations 1998, targets the inspection and possible replacement of wing hinge pins for certain aircraft models. This directive was introduced to mitigate the risk posed by defective or misaligned wing hinge pins, which could compromise the structural integrity of the aircraft. The directive requires that inspections and necessary repairs be completed before further flight, ensuring that all affected aircraft meet the required safety standards. The policy objective behind this directive is to enhance aviation safety by addressing specific design and manufacturing issues that could lead to catastrophic failures in-flight.

Scope and Application

The Civil Aviation Regulations 1998, as amended, apply to all persons and entities involved in the operation, maintenance, and certification of aircraft within Australia. Specifically, Part 39 - 105 of these regulations pertains to airworthiness directives, which are legally enforceable orders issued by the Civil Aviation Safety Authority to ensure the safe operation of aircraft. This particular directive targets the Weatherly 620 Series Aeroplanes, mandating that all operators of these aircraft must inspect, measure, and potentially replace or reposition the wing hinge pins (P/N 40852-001) that connect the main wing spar to the centre section. The requirement to comply with these directives before further flight after the effective date of 2 August 1996 ensures that any potential defects in the wing hinge pins, which could compromise the structural integrity of the wing joints, are identified and rectified. The directive references Weatherly Aviation Company Service Note No. 15, dated July 17, 1996, and FAA AD 96-16-06, issued by Priority Letter on 26 July 1996, as authoritative guides for compliance. This directive applies across the Commonwealth of Australia, and adherence is mandatory for all affected aircraft operators.

Key Provisions

The main operative sections of this legislation (Civil Aviation Regulations 1998, Part 39 - 105) pertain to airworthiness directives for the Weatherly 620 Series Aeroplanes, specifically focusing on the inspection and replacement of wing hinge pins (section 10/96 TLX). The directive mandates that all four P/N 40852-001 wing hinge pins, which connect the main spar of the wing to the centre section, must be inspected for their depth, length, and alignment. This inspection must be carried out in accordance with Weatherly Aviation Company Service Note No. 15, dated July 17, 1996, and references FAA AD 96-16-06 issued on July 26, 1996. Any defective pins must be replaced, and misaligned pins must be repositioned as per the guidelines in Service Note No. 15 and the aircraft maintenance manual. Compliance with these inspection and repair requirements is mandatory before any further flight after the directive's effective date of 2 August 1996. The obligations and requirements imposed by the Act on the parties or entities it governs include the thorough and regular inspection of the wing hinge pins of the Weatherly 620 Series Aeroplanes to ensure they meet the specified dimensions and alignment criteria. This inspection must be conducted before any subsequent flight following the directive's effective date. If any defects are found, the defective pins must be replaced, and any misaligned pins must be repositioned according to the prescribed procedures. These obligations are intended to maintain the structural integrity and safety of the aircraft, ensuring that the wing joints do not pose any risk due to manufacturing or installation errors. The legislation outlines specific consequences for non-compliance with the airworthiness directive. While the exact penalties are not detailed within the excerpt, non-compliance with airworthiness directives typically results in severe repercussions, including the potential grounding of the aircraft. Additionally, operators failing to comply with these directives may face civil or criminal penalties, including fines and imprisonment, as stipulated by the Civil Aviation Act 1988 and other relevant Australian legislation. The seriousness of these consequences underscores the importance of adhering to the directives to maintain aviation safety standards.