Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA) and enacted by the Parliament of the Commonwealth of Australia, provide comprehensive regulations to ensure the safety and efficiency of civil aviation within Australia. One specific amendment, AD/BUSHBY M2/2/Amdt 1, addresses a critical safety issue identified with the Bushby Mustang II Series Aeroplanes, particularly concerning the Sta 114.75 Bulkhead Member P/N 240.339. This amendment was introduced to address the problem of excessive back stick pressure during ground operations, which could cause flexing of the bulkhead and subsequent cracking at rivet locations, posing a significant risk to the structural integrity and safety of the aircraft. The policy objective of this amendment is to mandate specific modifications or approved alternate schemes to ensure that all Bushby Mustang II Series Aeroplanes comply with safety standards before exceeding 100 hours of time in service after 25 January 1990, thereby mitigating potential safety hazards.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to the Bushby Mustang II series aeroplanes, mandating compliance with Airworthiness Directives for all models of the aircraft. This directive pertains to the Sta 114.75 Bulkhead Member P/N 240.339, necessitating actions in accordance with Bushby Aircraft Inc.'s Mandatory Mustang II Service Bulletin dated 15 March 1989, or an alternate scheme approved by the Civil Aviation Safety Authority. Compliance is required unless the action has already been completed, with the directive mandating that the specified modifications must be undertaken prior to the aircraft exceeding 100 hours of time in service after 25 January 1990. This regulation ensures that any identified structural weaknesses, particularly those related to excessive back stick pressure causing bulkhead flexing and potential cracking at rivet locations, are addressed to maintain the aircraft's airworthiness.

Key Provisions

The key operative sections of the Civil Aviation Regulations 1998, particularly within Part 39 - 105, detail the specific Airworthiness Directives (AD) for the Bushby Mustang II Series Aeroplanes. Section AD/BUSHBY M2/2Amdt 1 outlines the critical modification requirement for the Sta 114.75 Bulkhead Member P/N 240.339, which must be addressed to ensure the continued airworthiness of these aircraft. This requirement is rooted in the Bushby Aircraft Inc. Mandatory Mustang II Service Bulletin dated 15 March 1989, or an alternate scheme approved by the Civil Aviation Safety Authority (CASA). Compliance with this directive is mandated unless the action has already been taken, and it must be completed prior to the aircraft exceeding 100 hours of time in service after 25 January 1990. The directive is designed to prevent potential structural issues that could arise from excessive back stick pressure during ground operations, leading to flexing and potential cracking at rivet locations on the specified bulkhead member. The obligations imposed by this Act on the parties or entities it governs, particularly aircraft operators and owners, are clear and specific. Operators must ensure that the required modifications to the Sta 114.75 Bulkhead Member are carried out either in accordance with the specified Bushby Aircraft Inc. Service Bulletin or through an alternate scheme approved by CASA. This requirement is not optional but a mandatory compliance measure, necessitating adherence to the directive timeline. Operators must verify that the modifications are completed before the aircraft accumulates 100 hours of service post the directive's effective date. Failure to comply with these directives could result in the aircraft being deemed unairworthy, leading to potential grounding and operational disruptions. Failure to comply with the provisions outlined in the Airworthiness Directives can result in severe consequences. The Civil Aviation Regulations 1998 provide for both civil and criminal penalties for non-compliance. Civil penalties can include fines, while criminal penalties may apply for more serious breaches, potentially resulting in imprisonment. The exact penalties are not detailed within the provided text, but the overarching framework of the regulations allows for significant enforcement actions against those who fail to adhere to the mandated safety directives. The potential for these penalties underscores the importance of timely and accurate compliance with the AD/BUSHBY M2/2Amdt 1 requirements to maintain the safety and airworthiness of the Bushby Mustang II Series Aeroplanes.