AD/PA-36/4 - Flap Control - Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, aim to ensure the safety and efficiency of civil aviation within the country. One specific aspect of these regulations is the Schedule of Airworthiness Directives, which mandates specific actions to be taken to maintain aircraft airworthiness. In this context, AD/PA-36/4 pertains to the modification of the flap control in Piper PA-36 (Pawnee Brave) Series Aeroplanes, specifically those with serial numbers ranging from 36-7360001 to 36-7460026 and 36-7460034. This directive addresses a particular safety concern identified in the specified aircraft models, ensuring that these planes meet the necessary safety standards through timely compliance within 100 hours of service after 31 January 1975. The policy objective is to mitigate risks associated with the identified issue, thereby enhancing the overall safety of civil aviation operations.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, which includes the Airworthiness Directives (AD) issued by the Civil Aviation Safety Authority (CASA), apply to the persons or entities responsible for the maintenance and operation of the Piper PA-36 (Pawnee Brave) series aeroplanes within Australia. This directive, identified as AD/PA-36/4, is targeted at aircraft models PA-36-285 with specific serial numbers, namely from 36-7360001 to 36-7460026 and 36-7460034. The directive mandates that a modification to the flap control system must be implemented within 100 hours of time in service after 31 January 1975. This requirement applies to all operators and maintenance personnel who are responsible for ensuring compliance with this safety directive. The directive extends across the entire Commonwealth of Australia, ensuring a national standard for the airworthiness of these specified aircraft. No exclusions, exemptions, or thresholds are explicitly mentioned in the text provided, although the scope of applicability is clearly defined by the serial numbers and the compliance timeframe. Further details and possible extensions or restrictions may be elaborated in subordinate instruments or additional documentation such as Piper SB No. 439.

Key Provisions

The Civil Aviation Regulations 1998, specifically within Part 39 - 105, include the Schedule of Airworthiness Directives, which are crucial for maintaining the safety standards of aircraft. For Piper PA-36 (Pawnee Brave) series aeroplanes, one such directive is AD/PA-36/4, which pertains to flap control modifications (Section 105). This directive applies to Model PA-36-285 with serial numbers ranging from 36-7360001 to 36-7460026 and 36-7460034. Compliance with this directive is mandatory and must be achieved within 100 hours of time in service after 31 January 1975, as documented in Piper Service Bulletin No. 439. Operators and owners of the affected Piper PA-36 aeroplanes are required to ensure that the specified modifications to the flap control system are completed as mandated by the directive. This involves adhering to the technical specifications and procedures outlined in the Piper SB No. 439, which are intended to enhance the safety and airworthiness of the aircraft. Failure to comply with these requirements can result in the aircraft being deemed unairworthy, which can lead to severe operational restrictions or grounding of the aeroplane. The Civil Aviation Safety Authority (CASA) enforces these directives rigorously, and any non-compliance can lead to significant consequences. Operators who fail to adhere to the specified modifications within the stipulated timeframe may face enforcement actions from CASA. The potential outcomes of such breaches include administrative penalties, fines, and legal actions which could further escalate to criminal charges in severe cases. The maximum penalties for non-compliance with airworthiness directives can be substantial, reflecting the critical importance of adhering to safety regulations in aviation. Furthermore, the directive underscores the importance of meticulous record-keeping and timely compliance. Operators must maintain detailed records of the modifications carried out and ensure that these records are readily available for inspection by CASA. This not only aids in compliance verification but also helps in demonstrating due diligence in maintaining the airworthiness of the aircraft. Continuous adherence to such directives is paramount for the safety of passengers, crew, and the general public, and underscores the overarching responsibility of aircraft operators in upholding stringent safety standards.