AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/HS 748/25 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.
British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes
AD/HS 748/25
Amdt 1
Control System Gust Locks 3/2003
Applicability: All Series HS 748 aircraft.
Requirement: Action in accordance with BAE Systems Mandatory Service Bulletin HS748-A27- 128 Revision 1.
Note: UK CAA AD 008-12-96 refers.
Compliance: For Part 1 of the Requirement document:
At the next scheduled Check C inspection after 20 March 2003. Repeat thereafter at each Check C inspection.
For Part 2 of the Requirement document:
Within 750 flight hours after accomplishment of the initial Part 1 inspection. Repeat thereafter at each Period 1 inspection.
This Amendment becomes effective on 20 March 2003.
Background: Following a flight control restriction incident, investigation revealed deficiencies in the rigging of the gust lock system. This Directive introduces new inspection, rectification, and rigging actions, and highlights correct control system maintenance practices.
British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes
AD/HS 748/25 Amdt 1 (Continued)
Amendment 1 is issued in response to a revision of the Requirement document, which introduces new instructions applicable to aircraft that have Modification 7673 (SB HS748-27-135) incorporated.
The original issue of this Airworthiness Directive became effective on 23 April 1998.
David Alan Villiers
Delegate of the Civil Aviation Safety Authority 30 January 2003
The above AD is notified in the Commonwealth of Australia Gazette on 26 February 2003.
Overview
The Civil Aviation Safety Authority (CASA) issued the Airworthiness Directive (AD) AD/HS 748/25 Amdt 1 in 2003, specifically on 20 March 2003, to address safety concerns identified in the British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes. This directive was enacted under subregulation 39.1 (1) of the Civil Aviation Regulations 1998. The AD was introduced to rectify deficiencies in the gust lock system's rigging, which had been identified following a flight control restriction incident. The policy objective of this directive is to ensure that the necessary inspections, rectifications, and rigging actions are carried out to maintain the airworthiness of the aircraft and to highlight correct control system maintenance practices.
The AD revokes the previous AD/HS 748/25 and mandates that all Series HS 748 aircraft adhere to the requirements set out in BAE Systems Mandatory Service Bulletin HS748-A27-128 Revision 1. Compliance with the directive is required at specific intervals: at the next scheduled Check C inspection after 20 March 2003 and then at each subsequent Check C inspection, and within 750 flight hours after the initial Part 1 inspection, followed by each Period 1 inspection thereafter. The directive aims to mitigate the risks associated with the previously identified unsafe condition and ensure the continued safe operation of the aircraft.
Scope and Application
The Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) applies to all British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes. This AD is a regulatory measure intended to address specific safety concerns identified in the control system gust locks of these aircraft, ensuring their continued airworthiness. The directive mandates particular actions to be taken by the aircraft operators in accordance with the instructions set out in BAE Systems Mandatory Service Bulletin HS748-A27-128 Revision 1, following a flight control restriction incident that revealed deficiencies in the gust lock system rigging. Compliance with this directive is required at specified intervals during scheduled inspections, ensuring that the identified safety issues are effectively addressed and mitigated. This AD, issued under subregulation 39.1(1) of the Civil Aviation Regulations 1998, provides the necessary instructions and timeframes for corrective actions, thus enhancing the overall safety standards of the affected aircraft.
Key Provisions
The Airworthiness Directive (AD) AD/HS 748/25 Amendment 1, issued under the Civil Aviation Regulations 1998, revokes the previous AD AD/HS 748/25 and sets forth new requirements for the British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes. Specifically, the AD mandates actions as outlined in BAE Systems Mandatory Service Bulletin HS748-A27-128 Revision 1, which is referenced in the requirement section. This directive applies to all Series HS 748 aircraft and involves two main parts. The first part requires the specified action to be taken at the next scheduled Check C inspection after 20 March 2003, and it must be repeated at each subsequent Check C inspection. The second part of the requirement mandates that the action be completed within 750 flight hours following the initial Part 1 inspection, and it must be repeated at each subsequent Period 1 inspection.
The obligations imposed by this AD on the parties or entities it governs are clear and specific. Aircraft operators and maintenance personnel must adhere to the instructions set out in BAE Systems Mandatory Service Bulletin HS748-A27-128 Revision 1. This includes performing the necessary inspections, rectifications, and rigging as specified in the requirement section. Furthermore, the AD mandates that these actions are carried out within the specified timeframes: at the next Check C inspection for Part 1 and within 750 flight hours for Part 2. Failure to comply with these requirements could result in significant safety risks, as the directive is a response to deficiencies in the gust lock system rigging that led to a flight control restriction incident.
Failure to comply with the provisions of this AD may result in severe consequences. Under the Civil Aviation Act 1988 and the Civil Aviation Regulations 1988, non-compliance with an AD can lead to both civil and criminal penalties. Civil penalties can include fines, while criminal penalties may include imprisonment. The exact penalties can vary based on the severity of the breach and any subsequent outcomes, but the overarching objective is to ensure that all aircraft meet the necessary safety standards. The AD's stringent requirements and the potential penalties underscore the importance of adhering to the specified actions and timeframes to maintain the airworthiness of the British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes.