AD/PA-46/8 - Turbocharger Oil Scavenge Reservoir Inspection/Modification, and Lower Cowl Modification

Overview

The Civil Aviation Regulations 1998, as amended, include specific provisions to ensure the airworthiness of aircraft, and the legislative instrument F2006B06043 specifically addresses the safety concerns associated with Piper PA-46 Malibu series aeroplanes. This regulation was enacted to mitigate risks associated with turbocharger oil scavenge reservoir failures, which could potentially lead to in-flight engine failures. The objective is to enhance aviation safety by requiring inspections and modifications to prevent the complete separation of the turbocharger oil scavenge reservoir, which was identified as a critical safety issue following a reported incident. The regulation applies to all PA 46-310P models with specific serial numbers, mandating inspections and modifications to ensure compliance with safety standards. The policy objective of this enactment is to safeguard the integrity of flight operations by addressing identified vulnerabilities in the aircraft's design and maintenance procedures.

Scope and Application

The Civil Aviation Regulations 1998, under the authority of the Civil Aviation Safety Authority, mandate specific airworthiness directives for certain aircraft models, including the Piper PA-46 Malibu series aeroplanes. Specifically, AD/PA-46/8 applies to all PA 46-310P models with serial numbers detailed in the requirement document. This directive is imperative for ensuring the safety and airworthiness of the aircraft by requiring inspection and modification of the turbocharger oil scavenge reservoir, as well as a lower cowl modification. Compliance with this directive is mandatory for continued flight operations; it necessitates adherence to Piper Service Bulletin No. 790A, mandating inspections and modifications to be conducted before further flights after 11 March 1985 and at intervals not exceeding 10 hours of time in service until the modifications are completed with the installation of the specified reservoir parts. This directive also applies to maintenance releases issued after the aforementioned date, ensuring that all relevant modifications are implemented to prevent in-flight engine failures due to the separation of the turbocharger oil scavenge reservoir.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, contains provisions pertaining to the Piper PA-46 (Malibu) series aeroplanes, particularly the AD/PA-46/8 which mandates the inspection, modification, and lower cowl modification of the turbocharger oil scavenge reservoir (sections 39.105.1 and 39.105.2). This legislative instrument applies to all models of the PA 46-310P series with specific serial numbers detailed in the Requirement Document. The directive references Piper SB No 790A, which outlines the compliance requirements. Essentially, operators must ensure that the turbocharger oil scavenge reservoir is inspected and, if necessary, modified by installing the specified reservoir parts (Part No 646954 or 646955) before further flights, adhering to the stipulated intervals (section 39.105.3). The Act imposes several obligations on the operators and owners of the affected Piper PA-46 aeroplanes. Primarily, it mandates that the specified inspection and modification be carried out on the turbocharger oil scavenge reservoir. This must occur before any further flight following the date of 11 March 1985 and must be repeated at intervals not exceeding 10 hours of time in service until the modification is completed (section 39.105.4). Furthermore, operators must ensure that the modifications are made in accordance with the manufacturer's instructions outlined in Part 1 of the Requirement Document and that all such actions are completed before the issuance of the next maintenance release after 11 March 1985 (section 39.105.5). Failure to comply with these requirements may result in the aeroplane being deemed unairworthy, potentially leading to grounding and other regulatory actions. In the event of non-compliance with the provisions outlined in the Civil Aviation Regulations 1998, there are potential civil and criminal consequences. While the specific penalties are not detailed in the legislative instrument, non-compliance with airworthiness directives generally can lead to significant penalties under the Civil Aviation Act 1988. Civil penalties may include fines up to a substantial amount, depending on the severity and frequency of the non-compliance. Additionally, criminal penalties can be imposed for more serious breaches, including imprisonment. The exact penalties are not explicitly stated in this instrument but are typically defined within the broader framework of Australian aviation law.