AD/CESSNA 400/2 - Flap Switch Insulation - Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, are a comprehensive set of rules designed to ensure the safety and efficiency of civil aviation within the country. Among these regulations, Part 39 specifically addresses the airworthiness of aircraft. One such regulation, AD/CESSNA 400/2, pertains to the Cessna 400 Series Aeroplanes and was introduced to address a specific safety issue related to the insulation of flap switches in model 411 aircraft with serial numbers below 411-0226. The policy objective behind this directive is to mitigate potential risks associated with inadequate insulation, thereby enhancing the overall safety of these aircraft. The directive references documents such as Cessna SL 66-56 and DCA/CESSNA 411/2, which must be complied with before 1 September 1971 to ensure the required modifications are implemented effectively.

Scope and Application

The Civil Aviation Regulations 1998, as detailed in Part 39 - 105, pertains specifically to airworthiness directives concerning aircraft safety and applies to the Cessna 400 Series Aeroplanes. The regulation in question, AD/CESSNA 400/2, mandates a modification to the flap switch insulation for model 411 aircraft with serial numbers below 411-0226. This applies to any aircraft that were in compliance with either Cessna SL 66-56 or DCA/CESSNA 411/2 before 1 September 1971. The regulation is administered by the Civil Aviation Safety Authority and has a national jurisdictional reach, impacting all relevant aircraft within the Commonwealth of Australia. There are no stated exclusions or exemptions within the text of this particular airworthiness directive, and it does not extend or restrict its application through subordinate instruments.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, detail the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives. One such directive pertains to Cessna 400 Series Aeroplanes, with a focus on the AD/CESSNA 400/2 (paragraph 1/67). This directive applies to all model 411 Cessna aircraft with serial numbers below 411-0226 (section 1). Compliance with this directive is contingent on either possessing document 1, which is the Cessna Service Letter 66-56, or document 2, the DCA/CESSNA 411/2 (section 1). Furthermore, compliance must have been achieved prior to 1 September 1971 (section 1). Under the Civil Aviation Regulations 1998, operators and owners of the specified Cessna 400 Series Aeroplanes must ensure that the required modifications are implemented as per the AD/CESSNA 400/2 directive. This involves adhering to the technical specifications outlined in the applicable service letters, namely Cessna SL 66-56 or DCA/CESSNA 411/2. Operators must ensure that the modifications related to the flap switch insulation are performed by authorised personnel and that the aircraft is returned to service only after successful compliance verification. Additionally, records of these modifications must be maintained in accordance with the regulations. Failure to comply with the AD/CESSNA 400/2 directive can result in significant legal consequences. The Civil Aviation Regulations 1998 outline various offences and penalties for non-compliance with airworthiness directives. For instance, operating an aircraft that does not meet the specified airworthiness standards can lead to enforcement actions by CASA. These actions may include fines, suspension or revocation of the aircraft's certificate of airworthiness, and potential prosecution. The specific penalties for non-compliance are detailed in the regulations and can vary depending on the severity of the breach. Operators found in breach of the directive may face substantial financial penalties and could be subject to legal proceedings, which could further impact their ability to operate their aircraft commercially.