AD/PC-6/21 - Control System Inspection and Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Parliament, provide comprehensive regulations for civil aviation safety, including specific directives for airworthiness of aircraft. One such directive, AD/PC-6/21, pertains to the Pilatus Porter PC-6 Series Aeroplanes and was introduced to address potential issues with the control system that could compromise the aircraft's safety. This directive mandates an inspection at intervals not exceeding 100 hours of time in service, with a requirement for modification to be completed before 1 April 1968, as detailed in Pilatus Service Bulletin No. 74. The policy objective behind this directive is to ensure that all Pilatus Porter PC-6 Series Aeroplanes meet the necessary safety standards, thereby reducing the risk of accidents or incidents related to control system failures.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the Civil Aviation Safety Authority's schedule of airworthiness directives, which applies to all Pilatus Porter PC-6 Series aeroplanes. This legislation mandates that inspections and modifications must be conducted on the control system of these aircraft, as outlined in Pilatus Service Bulletin No. 74. The directive applies to all models within the PC-6 Series, and compliance requires that inspections are performed at intervals not exceeding 100 hours of time in service until the specified modifications are made. Importantly, these modifications must be completed before 1 April 1968 to ensure continued compliance with airworthiness standards. The legislation extends its reach to operators, maintenance personnel, and any entity involved in the operation or maintenance of these aircraft within Australia's jurisdiction, ensuring adherence to the prescribed safety measures.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, establish crucial provisions related to the airworthiness directives for the Pilatus Porter PC-6 Series aeroplanes. Section 11/67 pertains to the control system inspection and modification for these aeroplanes (Part 39 - 105 AD/PC-6/21). According to this directive, all models of the Pilatus Porter PC-6 Series must undergo a control system inspection at intervals not exceeding 100 hours of time in service. Furthermore, these inspections must be completed before a specified date, in this case, 1 April 1968, and any modifications required by the directive must be made before that date as well. Entities governed by this Act, particularly those involved in the maintenance and operation of Pilatus Porter PC-6 Series aeroplanes, have specific obligations under the Civil Aviation Regulations 1998. These include conducting regular inspections of the control systems as outlined in the airworthiness directive. The compliance document provided is Pilatus SB No. 74, which serves as a guide for these inspections and any necessary modifications. It is imperative that all inspections and modifications are performed meticulously to ensure the continued airworthiness and safety of the aircraft in question. Failure to comply with the airworthiness directive set forth in the Civil Aviation Regulations 1998 may result in significant legal and financial consequences. The regulations establish clear parameters for inspections and modifications, and any breach of these requirements can lead to various penalties. While the specific penalties are not detailed within the provided text, it is understood that non-compliance with airworthiness directives can result in severe civil or criminal penalties, including fines, suspension of operational licenses, or other regulatory sanctions. The exact penalties may vary based on the severity and frequency of the non-compliance.