AD/PA-25/25 - Fuel Cell Vent - Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Parliament, serve as a foundational regulatory framework governing all aspects of civil aviation within Australia. One specific part of these regulations, Part 39 - 105, addresses airworthiness directives, including modifications and compliance requirements for aircraft to ensure safety standards are met. This legislative instrument, F2006B05563, pertains to Piper PA-25 (Pawnee) Series Aeroplanes, specifically mandating a modification to the fuel cell vent to mitigate safety risks associated with rubber-lined fuel cells. The directive, identified as AD/PA-25/25, was introduced to address the identified problem of potential fuel leaks and fire hazards, ensuring that all applicable aircraft meet the specified compliance timeline. The overarching policy objective is to enhance the safety and reliability of civil aviation operations by enforcing stringent airworthiness standards.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to all Piper PA-25 (Pawnee) series aeroplanes that are fitted with rubber-lined fuel cells identified by Piper Part Number 64747-00. This regulation is a legislative instrument under the Commonwealth of Australia, extending its jurisdiction to all aircraft operating within Australia's national airspace. The directive mandates compliance within 100 hours of time in service after 25 January 1968, establishing a clear timeframe for the required modifications. The regulation aims to ensure the airworthiness of these specific aircraft models by mandating modifications to the fuel cell vent, as outlined in Piper Service Bulletin No. 247. The application of this directive is comprehensive, covering all applicable aircraft, irrespective of the operator, and no exclusions or exemptions are specified in the provided text. The scope of this legislation is enforced through the Civil Aviation Safety Authority, which may extend or restrict its application through subordinate instruments as necessary.

Key Provisions

The Civil Aviation Regulations 1998, specifically in Part 39 - 105, detail the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives. Section AD/PA-25/25 pertains to the modification of the fuel cell vent on Piper PA-25 (Pawnee) Series Aeroplanes. The directive applies to all models fitted with rubber-lined fuel cells, specifically Piper P/N 64747-00, and references Piper Service Bulletin No. 247 for compliance guidance (Section 1/68). These regulations impose clear obligations on the operators and owners of the affected Piper PA-25 aeroplanes. They must ensure that the fuel cell vent modifications are carried out within 100 hours of time in service after the directive's effective date, which is 25 January 1968. This requirement is crucial for maintaining the airworthiness and safety of the aircraft. Failure to comply with these directives can lead to serious safety risks, including potential fuel leaks or fire hazards, which could endanger passengers and crew. Non-compliance with these airworthiness directives can result in severe consequences. The Civil Aviation Regulations provide for both civil and criminal penalties for those who fail to adhere to the specified requirements. Civil penalties may include fines, while criminal penalties could involve imprisonment, depending on the severity and intent behind the non-compliance. The exact penalties are determined based on the specific breach and the discretion of the court. It is imperative for operators and owners to take these directives seriously to avoid such repercussions.