Overview

The Civil Aviation Regulations 1998, specifically Part 39, establish the regulatory framework for ensuring the safety of aviation operations within Australia. Enacted by the Australian Parliament, this legislation aims to maintain high standards of airworthiness and safety in civil aviation, addressing gaps in previous regulatory structures to better manage the risks associated with air travel. The Civil Aviation Safety Authority (CASA), as the delegate of the Commonwealth, issues Airworthiness Directives under the authority of subregulation 39.1 (1) of CAR 1998. The policy objective behind these directives is to mandate corrective actions to address unsafe conditions in aircraft or aeronautical products, ensuring compliance with safety standards. One such example is AD/PMC/45, issued on 8 August 2000, which requires the conversion of specific McCauley propellers to an oil-filled configuration to mitigate identified safety risks. This directive underscores CASA's commitment to proactive safety management by enforcing timely and specific actions to enhance aviation safety.

Scope and Application

This Airworthiness Directive issued under the Civil Aviation Regulations 1998 applies specifically to all McCauley 2A36C23 and 2A36C82 propellers installed on Beech Debonair and Beech Bonanza 35 and 36 series aircraft, among others. The directive mandates the conversion of these propellers to an oil-filled configuration as per the instructions provided in McCauley Service Letter 1989-5A dated July 16, 1990. Propellers that have already been modified in accordance with McCauley SL 1989-5 can be certified as complying with this directive. The conversion must be completed at the next visit to a propeller workshop where blade removal is carried out, at the next propeller overhaul, or by 31 December 2003, whichever comes first. This directive is applicable nationally within the Commonwealth of Australia and was issued to address safety concerns identified in the country of origin’s corresponding airworthiness directive. The directive became effective on 10 August 2000, following its notification in the Commonwealth of Australia Gazette on 12 July 2000.

Key Provisions

The Airworthiness Directive AD/PMC/45, issued under subregulation 39.1 (1) of the Civil Aviation Regulations 1998, applies to all McCauley 2A36C23 and 2A36C82 propellers installed on Beech Debonair and Beech Bonanza 35 and 36 series aircraft (section 8/2000). The requirement of this directive is to convert these propellers to an oil-filled configuration in accordance with the instructions provided in McCauley Service Letter 1989-5A dated July 16, 1990 (section 8/2000). Propellers that have already been modified according to McCauley SL 1989-5 can be certified as compliant with this directive (Note 1). Additionally, this directive references FAA AD 98-25-13, amendment 39-10939 (Note 2). Compliance with this directive is mandated at the next visit to a propeller workshop where blade removal is carried out, at the next propeller overhaul, or by 31 December 2003, whichever comes first (section 8/2000). This Airworthiness Directive became effective on 10 August 2000. The directive was issued by Eugene Paul Holzapfel, a delegate of the Civil Aviation Safety Authority, on 30 June 2000 and was subsequently notified in the Commonwealth of Australia Gazette on 12 July 2000. Entities and parties governed by this directive must ensure that the specified propellers are converted to the oil-filled configuration as required. Failure to comply with this directive may result in the aircraft being deemed unairworthy. Such non-compliance could lead to enforcement actions by the Civil Aviation Safety Authority, potentially resulting in fines, enforcement notices, or other regulatory sanctions. The exact penalties for non-compliance are not specified in the text, but they could include administrative penalties under the Civil Aviation Act 1988, or other applicable laws.