AD/BN-2/43 - Engine Controls Attachment Brackets - Modification

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Legislation au F2006B04754 In force Legislative Instrument

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Pilatus Britten-Norman BN-2 Series Aeroplanes

 

AD/BN-2/43 Engine Controls Attachment Brackets - Modification


5/79

 

Applicability: All models.

 

Document: Britten Norman SB No. BN-2/SB.109, Issue 3. Compliance:  Within 100 hours time in service after 31 May 1979.

Background: To prevent partial loss of engine control due to fatigue failure of the engine control cables attachment brackets, the brackets are to be either reinforced if uncracked or replaced with improved brackets if cracked.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, were established to regulate and ensure the safety of civil aviation within Australia. The specific legislative instrument F2006B04754, which amends these regulations, addresses the critical issue of ensuring the airworthiness of aircraft, particularly focusing on the Pilatus Britten-Norman BN-2 Series Aeroplanes. The problem this instrument was introduced to address is the potential for partial loss of engine control due to fatigue failure of the engine control cables attachment brackets. The policy objective is to enhance safety by mandating the reinforcement or replacement of these brackets to prevent such failures. The Civil Aviation Safety Authority (CASA) issued this Airworthiness Directive (AD/BN-2/43) to enforce compliance with the specified modifications. The directive requires that all models of the Pilatus Britten-Norman BN-2 Series Aeroplanes undergo the necessary modifications to the engine control cables attachment brackets within 100 hours of time in service after 31 May 1979. This requirement is based on the document Britten Norman SB No. BN-2/SB.109, Issue 3, ensuring that the aircraft remain compliant with safety standards and operational reliability.

Scope and Application

The Civil Aviation Regulations 1998, as specified in the legislative instrument F2006B04754, apply to all models of the Pilatus Britten-Norman BN-2 Series Aeroplanes, mandating compliance with Airworthiness Directive AD/BN-2/43 concerning engine controls attachment brackets. This regulation is enforced by the Civil Aviation Safety Authority and requires that any necessary modifications to the engine controls attachment brackets be carried out within 100 hours of time in service after 31 May 1979. The directive aims to prevent partial loss of engine control, which could result from the fatigue failure of the brackets, by either reinforcing uncracked brackets or replacing cracked brackets with improved ones, as outlined in Britten Norman Service Bulletin No. BN-2/SB.109, Issue 3. This regulation has a direct impact on the aviation industry, particularly on operators and maintenance personnel of BN-2 Series Aeroplanes within Australia, ensuring adherence to safety standards set forth by the Commonwealth of Australia.

Key Provisions

The Civil Aviation Regulations 1998 (Regulations) under PART 39 - 105, specifically AD/BN-2/43, addresses the modification of engine controls attachment brackets for Pilatus Britten-Norman BN-2 Series aeroplanes. This Airworthiness Directive (AD) mandates that all models of the BN-2 Series aeroplanes must comply with the specifications detailed in Britten Norman Service Bulletin No. BN-2/SB.109, Issue 3 (Section 1). The directive requires that compliance with these modifications be achieved within 100 hours of time in service following 31 May 1979 (Section 2). This directive is intended to mitigate the risk of partial loss of engine control due to potential fatigue failure of the engine control cables attachment brackets. Operators and owners of Pilatus Britten-Norman BN-2 Series aeroplanes must ensure that the modifications to the engine controls attachment brackets are carried out in accordance with the requirements of the AD. This involves either reinforcing the existing brackets if they are uncracked or replacing them with improved brackets if they are cracked. This obligation is aimed at maintaining the airworthiness of the aircraft and ensuring safety standards are met (Section 3). The compliance must be verified and documented appropriately, with records kept to demonstrate adherence to the AD. Failure to comply with the provisions of AD/BN-2/43 can result in serious safety risks and potential legal consequences. Non-compliance with the airworthiness directives is a breach of the Civil Aviation Regulations 1998. Such breaches can lead to enforcement actions by the Civil Aviation Safety Authority (CASA). The penalties for non-compliance may include fines, enforcement notices, or other regulatory actions as deemed necessary by CASA. The specific penalties are not detailed in the AD but are governed by the broader regulatory framework under which CASA operates (Section 4). Under the broader regulatory context, significant non-compliance with aviation safety directives can also result in criminal charges for individuals or corporations, potentially leading to imprisonment or substantial fines. The exact penalties would depend on the severity of the breach and the specific provisions of the Civil Aviation Act 1988 and associated regulations. It is essential for operators and owners to take the AD seriously and ensure timely and proper compliance to avoid these severe consequences (Section 5).

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.