COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes
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 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.
AD/HS 748/26 Underfloor Flying Control Circuits
Forward of STA 252F
Applicability: All HS 748 series aircraft.
4/2000
Requirement: Inspect in accordance with BAe Regional Aircraft Mandatory Service Bulletin HS748-27-133.
Compliance: Before 31 January 2001.
This Airworthiness Directive becomes effective on 20 April 2000.
Background: An incident report was received by the manufacturer of a flying control restriction.
Investigation revealed reduced flying control clearances and signs of rubbing contact between elements of the control circuits and aircraft structure. Trapped debris was also found which had the potential for restricting and jamming control circuits.
Bernard Malcolm Hole
Delegate of the Civil Aviation Safety Authority 9 March 2000
The above AD is notified in the Commonwealth of Australia Gazette on 22 March 2000.
Overview
The Civil Aviation Regulations 1998, enacted by the Australian Government, address the need for stringent safety standards in the aviation industry. Specifically, Part 39, Section 105, outlines the requirements for airworthiness directives, which are issued by the Civil Aviation Safety Authority (CASA) to ensure aircraft and aeronautical products meet safety standards. The policy objective of these regulations is to enhance aviation safety by mandating specific actions to correct unsafe conditions. The Airworthiness Directive (AD) referenced here, AD/HS 748/26, pertains to British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes and was introduced to address an identified risk of flying control restrictions due to reduced clearances and potential debris jamming in the underfloor flying control circuits. This directive, effective from 20 April 2000, requires all HS 748 series aircraft to undergo inspection in accordance with a specified service bulletin before 31 January 2001 to ensure compliance and mitigate the identified safety risk.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the issuance of Airworthiness Directives by the Civil Aviation Safety Authority (CASA) to ensure the safety of aircraft operations within the Commonwealth of Australia. This particular Airworthiness Directive (AD/HS 748/26) applies to all British Aerospace (Hawker Siddeley) HS 748 series aeroplanes, mandating an inspection of the underfloor flying control circuits forward of Structural Assembly 252F. The directive was issued in response to reports of flying control restrictions, including reduced clearances and rubbing contact between control circuits and aircraft structure, along with trapped debris that could lead to control jamming. The directive requires compliance by inspecting the specified areas in accordance with BAe Regional Aircraft Mandatory Service Bulletin HS748-27-133 before 31 January 2001. This AD became effective on 20 April 2000 and is applicable nationally, impacting all operators of HS 748 series aircraft within the Australian jurisdiction. The directive does not specify any exclusions or exemptions, implying that all affected aircraft must comply with the outlined requirements.
Key Provisions
The Civil Aviation Regulations 1998, under PART 39 - 105, establish an Airworthiness Directive (AD) for British Aerospace (Hawker Siddeley) HS 748 series aeroplanes (section 1). This directive, AD/HS 748/26, pertains specifically to the underfloor flying control circuits forward of STA 252F (section 2). It mandates that all HS 748 series aircraft undergo an inspection as per the requirements set out in BAe Regional Aircraft Mandatory Service Bulletin HS748-27-133 (section 3).
The AD is issued by a delegate of the Civil Aviation Safety Authority (CASA), Bernard Malcolm Hole, on 9 March 2000 (section 4). The directive became effective on 20 April 2000, requiring compliance by 31 January 2001 (section 5). The need for this AD arose from an incident report detailing a flying control restriction, which was investigated by the manufacturer. The investigation found reduced flying control clearances, signs of rubbing between control circuit elements and aircraft structure, and trapped debris that could potentially restrict or jam control circuits (section 6).
Operators of HS 748 series aircraft are obligated to ensure that the specified inspection is conducted in accordance with the detailed instructions provided in the BAe Regional Aircraft Mandatory Service Bulletin HS748-27-133 (section 7). Failure to comply with this directive could result in significant safety risks, as the identified issues have the potential to compromise the integrity and functionality of the flying control circuits.
Breaching the requirements set out in the AD may lead to enforcement actions by CASA. The Civil Aviation Regulations 1998 include provisions for penalties and consequences for non-compliance with ADs. While the specific penalties are not detailed in the AD itself, under CAR 1998, penalties for non-compliance can include fines and, in severe cases, the grounding of the aircraft until the required actions are taken. These provisions are designed to ensure the continued safety and airworthiness of the aircraft operating within Australia's airspace.