COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/BN-2/69 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.
Pilatus Britten-Norman BN-2 Series Aeroplanes
AD/BN-2/69
Amdt 1
Throttle Friction Adjuster 4/2003
Applicability: Model BN2, BN2A, BN2B, BN2T and BN2T-4 series Islander aircraft. Requirement: Action in accordance with Britten-Norman Service Bulletin (SB) BN2/SB.272 Issue
2.
Note: The UK CAA has deemed Britten-Norman SB BN2/SB.272 Issue 2 mandatory.
Compliance: Unless previously inspected in accordance with Britten-Norman SB BN2/SB.272 Issue 2 or earlier revision; within 10 flight hours from the effective date of this Directive. Thereafter at intervals not to exceed 200 flight hours.
This Amendment becomes effective on 17 April 2003.
Background: This Amendment details changes in requirements to only replace hardware as required, and an increase in the inspection interval.
This Directive was originally raised after a report of a throttle friction adjuster being loosened too far. This caused the split pin and washer on the end of the shaft to be broken.
The original issue of this Airworthiness Directive became effective on 9 August 2000.
James Coyne
Delegate of the Civil Aviation Safety Authority 14 February 2003
The above AD is notified in the Commonwealth of Australia Gazette on 26 March 2003.
Overview
The Civil Aviation Regulations 1998 (CAR 1998), specifically amended through the legislative instrument F2006B04781, address the need for ensuring the safety of aircraft through the issuance and management of Airworthiness Directives (ADs). This particular legislative instrument focuses on the Pilatus Britten-Norman BN-2 series aeroplanes, revoking the previous AD AD/BN-2/69 and issuing a new one. This change was introduced to address a safety concern identified in the throttle friction adjuster of the aircraft, which had previously led to mechanical failures. The directive mandates specific actions to be taken by operators to ensure compliance, reflecting the Civil Aviation Safety Authority's (CASA) commitment to maintaining high safety standards within the aviation industry. This legislative amendment was enacted to correct the identified unsafe condition and to ensure the aircraft remain airworthy under the stipulated conditions and intervals.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39, applies to all aircraft registered in Australia, including the Pilatus Britten-Norman BN-2 Series Aeroplanes as outlined in this Airworthiness Directive. This AD applies to BN2, BN2A, BN2B, BN2T and BN2T-4 series Islander aircraft and mandates corrective actions to ensure the safe operation of these aircraft. The directive was issued by the Civil Aviation Safety Authority (CASA) delegate, James Coyne, on 14 February 2003, and was gazetted on 26 March 2003. The requirement for action is in response to a safety issue identified with the throttle friction adjuster, necessitating inspection and corrective action in accordance with Britten-Norman Service Bulletin BN2/SB.272 Issue 2. The AD requires immediate action if the aircraft has not been inspected in accordance with the bulletin or earlier revisions, within 10 flight hours from the effective date of this directive, and subsequently at intervals not exceeding 200 flight hours. This directive applies across the Commonwealth of Australia, impacting operators and owners of the specified Islander aircraft models.
Key Provisions
The Civil Aviation Regulations 1998 (CAR 1998) under PART 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, introduce a new Airworthiness Directive (AD) for Pilatus Britten-Norman BN-2 Series Aeroplanes, specifically targeting the throttle friction adjuster. The AD (AD/BN-2/69 Amendment 1) mandates that operators of BN2, BN2A, BN2B, BN2T and BN2T-4 series Islander aircraft must adhere to the requirements set out in this directive to address safety concerns related to the throttle friction adjuster. The directive requires that the action detailed in Britten-Norman Service Bulletin (SB) BN2/SB.272 Issue 2 must be carried out in accordance with the specified instructions, within 10 flight hours from the effective date of the directive, and then at intervals not exceeding 200 flight hours thereafter.
Operators and owners of the specified aircraft are required to follow the instructions provided in the Britten-Norman Service Bulletin (SB) BN2/SB.272 Issue 2, which has been deemed mandatory by the UK Civil Aviation Authority (CAA). This means that they must inspect the throttle friction adjuster as per the bulletin's guidelines and replace any hardware as necessary. The directive specifies the need for compliance with these instructions to mitigate the risk of the throttle friction adjuster becoming loose and causing damage, such as the breaking of the split pin and washer on the shaft end, which was the issue that led to the initial AD. This obligation ensures that the aircraft remain airworthy and safe to operate, with a focus on preventing the recurrence of the specific issue identified.
Failure to comply with the AD could result in serious safety implications and potentially severe consequences. While the regulations do not explicitly detail the specific penalties or consequences for non-compliance, non-adherence to airworthiness directives is generally treated with seriousness under the Civil Aviation Act 1988 and related regulations. In general, non-compliance with airworthiness directives could lead to enforcement actions by the Civil Aviation Safety Authority (CASA), including fines and potential grounding of the aircraft until the required actions are completed. The exact penalties would depend on the specific circumstances of non-compliance and the discretion of CASA in enforcing the regulations.