COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety 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 issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 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-2/78 Control Rod to Elevator Trim Tab Lever B olt
Retainer
7/2003
DM
Applicability: All BN2, BN2A, BN2B, and BN2T series Islander aircraft.
Requirement: Action in accordance with B-N Group Mandatory Service Bulletin SB 292, dated 1 May 2003.
Compliance: At the next daily check after 4 June 2003, and thereafter at any time the affected control rod is disconnected.
This Airworthiness Directive becomes effective on 4 June 2003.
Background: The manufacturer has determined that the retainer NB-03-5229, installed at the connection of the drive rod elevator trim tab lever may have been installed incorrectly, where the retainer is installed under the bolt head and not on the inner face of the drive lever. If the retainer is installed in this way it will not prevent the bolt from disconnecting.
David Villiers
Delegate of the Civil Aviation Safety Authority 29 May 2003
The above AD is notified in the Commonwealth of Australia Gazette on 4 June 2003.
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Overview
The Civil Aviation Safety Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, were established to ensure the safety of civil aviation by prescribing standards for the airworthiness of aircraft and aeronautical products. This legislative instrument addresses safety concerns and seeks to rectify unsafe conditions through the issuance of Airworthiness Directives (AD). The Civil Aviation Safety Authority (CASA) is the delegate of the Commonwealth responsible for enforcing these regulations and ensuring compliance through ADs. The policy objective is to maintain and enhance the safety of civil aviation by mandating specific actions to be taken on aircraft identified as having potential safety issues.
In response to a specific safety concern identified by the manufacturer, the CASA issued AD/BN-2/78 on 4 June 2003. This directive applies to all BN2, BN2A, BN2B, and BN2T series Islander aircraft. The directive requires adherence to the instructions outlined in B-N Group Mandatory Service Bulletin SB 292, dated 1 May 2003, which addresses the potential issue of an incorrectly installed bolt retainer in the control rod to elevator trim tab lever. The mandate is for this action to be undertaken during the next daily check after the effective date of the directive and at any time the affected control rod is disconnected. This directive aims to rectify an unsafe condition that could potentially compromise the aircraft’s operational safety.
Scope and Application
The Airworthiness Directive issued under the Civil Aviation Safety Regulations 1998 specifically applies to all aircraft within the Pilatus Britten-Norman BN-2 series, including models BN2, BN2A, BN2B, and BN2T. This directive mandates the implementation of corrective action to address a potentially unsafe condition identified in the control rod to elevator trim tab lever bolt retainer. The directive requires adherence to the instructions outlined in the B-N Group Mandatory Service Bulletin SB 292, dated 1 May 2003, to ensure the retainer is correctly installed to prevent the bolt from disconnecting. Compliance with this directive is required at the next daily check after its effective date of 4 June 2003, and any subsequent time the affected control rod is disconnected. This directive is issued by a delegate of the Civil Aviation Safety Authority and is applicable nationally, impacting all relevant aircraft within the Australian jurisdiction.
Key Provisions
The Civil Aviation Safety Regulations 1998, specifically Part 39 - 105, addresses the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives (AD) through AD/BN-2/78. This directive pertains to the Pilatus Britten-Norman BN-2 Series Aeroplanes, particularly those identified as BN2, BN2A, BN2B, and BN2T series Islander aircraft. The directive mandates specific action to address an identified unsafe condition concerning the control rod to elevator trim tab lever bolt retainer.
The directive requires aircraft operators to adhere to the instructions outlined in B-N Group Mandatory Service Bulletin SB 292, dated 1 May 2003. The action mandated by the AD must be taken at the next daily check after 4 June 2003, and at any subsequent time when the affected control rod is disconnected. This ensures the safety of the aircraft by preventing the bolt retainer from being installed incorrectly, which could lead to the bolt disconnecting and potentially compromising flight safety.
Operators of the specified BN-2 Series Islander aircraft must ensure compliance with the directive by implementing the corrective action as specified in the SB 292. This involves verifying the installation of the retainer NB-03-5229 at the connection of the drive rod elevator trim tab lever, ensuring it is correctly installed on the inner face of the drive lever rather than under the bolt head. Failure to comply with this directive could result in severe safety risks and regulatory non-compliance.
Non-compliance with the AD may result in various civil and criminal consequences. The maximum penalties for breaches of such directives can include fines and potential legal actions under the Civil Aviation Act 1988. The specific penalties can vary based on the severity of the breach and the impact on aviation safety, but the overarching intent is to enforce strict adherence to the safety standards set forth by CASA.