AD/PA-44/8 - Aileron Spar Web - Modification

Overview

The Civil Aviation Regulations 1998, as amended by the Civil Aviation (Safety) Regulations 2006, contain provisions addressing the airworthiness of aircraft, including specific directives for particular aircraft models. One such directive, AD/PA-44/8, pertains to the Piper PA-44 (Seminole) series aeroplanes, specifically model PA-44-180 with serial numbers between 44-7995001 and 44-8095006. This directive was introduced to address an issue of abnormal flexing in the aileron spar web at the push-pull rod attachment, as reported by the manufacturer. The objective is to ensure the continued airworthiness and safety of these aircraft by mandating a modification to the aileron spar web. This legislative instrument was enacted by the Australian Government to maintain safety standards within the civil aviation industry, ensuring compliance with international safety protocols. The Australian Government, through the enactment of this directive, aims to enhance the safety and reliability of civil aviation operations by addressing specific structural concerns in the identified aircraft models. The regulation is a response to reports of structural abnormalities that could potentially compromise flight safety, thereby safeguarding passengers and crew. The directive is part of a broader regulatory framework overseen by the Civil Aviation Safety Authority, which seeks to enforce stringent safety measures across the aviation sector.

Scope and Application

The Civil Aviation Regulations 1998, under the purview of the Civil Aviation Safety Authority, encompasses a wide range of safety directives that govern the operation and maintenance of aircraft within Australia. Specifically, Part 39 - 105 pertains to airworthiness directives for certain aircraft models, including the Piper PA-44 (Seminole) series aeroplanes. This directive applies to all model PA-44-180 aircraft with serial numbers ranging from 44-7995001 to 44-8095006. The regulation mandates modifications to the aileron spar web to address abnormal flexing reported at the push-pull rod attachment, as documented in Piper Service Bulletin No. 702. Compliance with this directive is essential for aircraft manufactured before 1 July 1981, ensuring that these aircraft meet necessary safety standards. This regulation extends to the entire Commonwealth of Australia, governing the operations of both domestic and international flights within its airspace. The application of this directive is overseen by the Civil Aviation Safety Authority, which may implement subordinate instruments to further detail compliance requirements or address any amendments.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, establish the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, which includes the AD/PA-44/8 concerning the Piper PA-44 (Seminole) series aeroplanes. This directive pertains to an aileron spar web modification for certain model PA-44-180 aeroplanes with serial numbers ranging from 44-7995001 to 44-8095006. The directive is documented in Piper Service Bulletin No. 702. Compliance with this directive is mandatory for aeroplanes manufactured before 1 July 1981. The directive imposes specific obligations on aircraft operators and owners. Firstly, it requires a thorough inspection of the aileron spar web to identify any abnormal flexing at the push-pull rod attachment. If any flexing is detected, the aileron spar web must be modified to rectify the issue. This involves the installation of reinforcing gussets, as detailed in the manufacturer's instructions. Additionally, the directive mandates that all modifications be completed by authorised personnel, ensuring that the aeroplane returns to an airworthy condition before further flight operations. Failure to comply with the requirements of AD/PA-44/8 may result in serious consequences. The Civil Aviation Safety Authority has the authority to take enforcement action against operators who fail to adhere to the airworthiness directive. In cases of non-compliance, the penalties can include fines, suspension of the operator's certificate, or even grounding of the affected aircraft until the necessary modifications are completed. The seriousness of these penalties underscores the importance of adhering to the directive to ensure the safety of flight operations.