Overview

The Civil Aviation Regulations 1998 (CAR 1998) were enacted to provide a regulatory framework for ensuring the safety and efficiency of civil aviation within Australia. One of the key components of these regulations is the issuance of Airworthiness Directives (ADs) by the Civil Aviation Safety Authority (CASA), which serves as the delegate of the Commonwealth Government. The ADs are crucial in addressing identified safety issues and ensuring compliance with airworthiness standards. For instance, AD/IAI-A/9 issued on 1 June 2001, pertains specifically to the Israel Aircraft Industries 1125 (Astra) Series Aeroplanes, aiming to rectify an unsafe condition involving insufficient clearance between electrical wiring bundles and the Air Data Reference and Reversionary Switching Panels. This directive was introduced to prevent potential chafing of the wire bundles, which could lead to smoke or fire in the cockpit. The AD became effective on 13 June 2001, requiring the specified inspections and necessary actions within 25 hours of the directive's effective date.

Scope and Application

This Airworthiness Directive (AD) pertains specifically to the Israel Aircraft Industries 1125 (Astra) Series Aeroplanes with serial numbers 073, 079 through 125 inclusive, and 127. It is issued under the Civil Aviation Regulations 1998 by the Civil Aviation Safety Authority (CASA) delegate, whose authority is grounded in the regulatory framework of the Commonwealth of Australia. The directive mandates the inspection and necessary action regarding the clearance between the electrical wiring bundles and the Air Data Reference and Reversionary Switching Panels. This requirement must be fulfilled according to the instructions outlined in Astra Alert Service Bulletin No 1125-31A-236 dated 16 April 2001, within 25 hours of the aeroplanes' time in service following the effective date of the directive, which is 13 June 2001. The AD ensures that the specified actions are taken to mitigate the risk of wire bundle chafing, which could potentially lead to smoke and/or fire in the cockpit.

Key Provisions

The Airworthiness Directive (AD) issued under the Civil Aviation Regulations 1998 (CAR 1998) applies specifically to the Israel Aircraft Industries (IAI) 1125 (Astra) Series Aeroplanes with certain serial numbers, namely 073, 079 through 125 inclusive, and 127 (section 3). The directive requires an inspection of the clearance between the electrical wiring bundles and the Air Data Reference and Reversionary Switching Panels, with additional clamping to be installed if necessary (section 4). This inspection and any required installation must be carried out in accordance with Astra Alert Service Bulletin No 1125-31A-236 dated 16 April 2001, and the actions must be completed within 25 hours of the aircraft being in service following the effective date of the AD (section 5). The AD becomes effective on 13 June 2001. The AD imposes several obligations on the operators and maintainers of the affected aircraft. Primarily, they are required to ensure that the specified inspections and any necessary modifications are carried out promptly and in accordance with the detailed instructions provided in the referenced service bulletin. Operators must comply with the timeframe stipulated, which is within 25 hours of the aircraft being in service after the effective date of the AD. The directive underscores the importance of maintaining sufficient clearance between the electrical wiring bundles and the switching panels to prevent potential hazards such as wire chafing, smoke, and fire in the cockpit. Failure to comply with the AD may result in serious safety risks, including the potential for in-flight emergencies. Although the AD itself does not explicitly state specific penalties for non-compliance, non-compliance with CAR 1998 provisions generally could lead to enforcement actions by the Civil Aviation Safety Authority (CASA). These actions may include fines, suspension of airworthiness certificates, or other regulatory penalties as outlined in the Civil Aviation Act 1988 and associated regulations. The severity of these consequences highlights the importance of adhering to the AD to ensure the safety and airworthiness of the aircraft in question.