AD/PA-42/10 - Stall/Flow Strip

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, provide a comprehensive framework for regulating civil aviation activities within Australia. One of the specific legislative instruments within this framework is F2006B05976, which pertains to the Piper PA-42 (Cheyenne III) Series Aeroplanes. This regulation was introduced to address the problem of incorrectly positioned stall/flow strips on certain model PA-42 aircraft, specifically those with serial numbers 42-8001004 to 42-8001106. The policy objective is to ensure compliance with Piper Service Bulletin No. 807, which mandates that these modifications must be made within 100 hours of time in service after 31 August 1985 to enhance the safety and operational integrity of the affected aircraft. This regulation is part of the broader effort by the Civil Aviation Safety Authority to maintain high safety standards in civil aviation through detailed airworthiness directives and compliance requirements.

Scope and Application

The Civil Aviation Safety Authority (CASA) has issued Airworthiness Directive AD/PA-42/10, applicable specifically to Piper PA-42 (Cheyenne III) series aeroplanes with serial numbers (S/Nos) ranging from 42-8001004 to 42-8001106. This directive mandates compliance with Piper Service Bulletin No. 807, which addresses the issue of incorrectly positioned stall/flow strips on certain aircraft. The requirement necessitates corrective action to be completed within 100 hours of time in service following 31 August 1985. This regulation applies to all relevant aircraft irrespective of their location within the Australian jurisdiction, thereby ensuring that these safety measures are uniformly enforced across the country. The directive does not explicitly mention any exclusions or exemptions, and its application is directly tied to the specified serial numbers of the aircraft, with no additional extensions or restrictions provided by subordinate instruments.

Key Provisions

The Civil Aviation Regulations 1998, particularly Part 39 - 105, establishes the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, which includes specific requirements for maintaining the airworthiness of aircraft. For the Piper PA-42 (Cheyenne III) Series Aeroplanes, AD/PA-42/10 outlines the mandatory compliance for stall/flow strip positioning. Specifically, the directive applies to all model PA-42 aircraft with serial numbers ranging from 42-8001004 to 42-8001106 (Section 39 - 105). The requirement is based on Piper Service Bulletin No. 807, which mandates the correct positioning of stall/flow strips to ensure safety during flight operations. The primary obligation under this directive is for the aircraft owners or operators to ensure that the stall/flow strips on their respective aircraft are correctly positioned according to the specifications outlined in Piper Service Bulletin No. 807. Compliance with this directive must be achieved within 100 hours of time in service after 31 August 1985. The directive underscores the importance of adhering to these specifications to prevent any potential safety hazards associated with incorrectly positioned stall/flow strips. Failure to comply with AD/PA-42/10 could result in serious safety concerns and potential legal consequences. While the specific penalties for non-compliance are not explicitly detailed in the text, under the Civil Aviation Act 1988, non-compliance with airworthiness directives can lead to enforcement actions by CASA. These actions may include fines, operational restrictions, or even the grounding of the affected aircraft until compliance is achieved. The severity of the penalties reflects the critical nature of ensuring that all aircraft meet the required safety standards set forth by CASA.