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 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.
British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes
AD/HS 748/30 Electrical Cable Chafing 12/2002
TX
Applicability: All HS 748 series aeroplanes.
Requirement: 1. Inspect the wing dry areas in accordance with BAe Systems Alert Service Bulletin (ASB) HS748-A28-44 dated 26 September 2002.
2. If any discrepancies are detected during the Requirement 1 inspections, accomplish any necessary repairs or replacements in accordance with ASB HS748-A28-44.
Note: This Alert Service Bulletin has been classified as ‘Mandatory’ by the CAA(UK).
Compliance: For Requirement 1 - Within 48 hours after the effective date of this Directive or immediately on reaching a maintenance base capable of carrying out the inspection.
For Requirement 2 - Before further flight.
This Airworthiness Directive becomes effective on 2 October 2002.
Background: BAe Systems has advised of receiving a report from an ATP operator of a fire in the dry area of the wing. The fire has been attributed to chafe damage between an electrical cable and a fuel cross feed drainpipe. The chafe damage was severe enough to cause fuel leakage from the pipe; electrical sparks from the damaged cable probably ignited the fuel.
As ATP and HS 748 aeroplanes are similar, this condition could also exist on HS 748 aeroplanes. This Directive requires the inspection of the wing dry areas to ensure the fuel and electrical systems are safe.
Barry James Reid McKay
Delegate of the Civil Aviation Safety Authority 30 September 2002
The above AD is notified in the Commonwealth of Australia Gazette on 2 October 2002.
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Overview
The Civil Aviation Regulations 1998, enacted by the Commonwealth of Australia, were developed to ensure the safety of civil aviation within Australia. The Civil Aviation Regulations 1998 provide the framework for the regulation of aviation safety, including the issuance of Airworthiness Directives (ADs) to address specific safety concerns. These ADs aim to ensure that aircraft and aeronautical products remain in a safe condition for operation. In particular, the AD/HS 748/30 was introduced in 2002 to address an identified safety issue concerning electrical cable chafing in British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes. The policy objective of this AD is to mitigate the risk of fire due to electrical cable chafing, which could potentially lead to fuel leakage and subsequent ignition. This AD was issued by a delegate of the Civil Aviation Safety Authority (CASA), under subregulation 39.1(1) of the Civil Aviation Regulations 1998, and became effective on 2 October 2002.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39, applies to all aircraft and aeronautical products within the Australian jurisdiction. This particular Airworthiness Directive (AD) targets all British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes and mandates actions to address a safety concern related to electrical cable chafing. The directive is issued by a delegate of the Civil Aviation Safety Authority (CASA) and requires inspections and repairs to ensure the safety of the aircraft's wing dry areas, preventing potential fire hazards caused by electrical sparks igniting leaked fuel. Compliance with this directive must be met within 48 hours from its effective date for inspections and before further flight for any necessary repairs. This AD is a specific application of the broader regulatory framework under the Civil Aviation Regulations 1998, aiming to maintain airworthiness standards and ensure safe aviation operations.
Key Provisions
The main operative sections of this Airworthiness Directive (AD) pertain to the requirements for inspecting and potentially repairing the wing dry areas of the British Aerospace (Hawker Siddeley) HS 748 series aeroplanes. Specifically, under section 1, the directive mandates that all HS 748 series aeroplanes must undergo an inspection of their wing dry areas in accordance with BAe Systems Alert Service Bulletin (ASB) HS748-A28-44 dated 26 September 2002. If any discrepancies are detected during this inspection, the directive, under section 2, requires that any necessary repairs or replacements be carried out in accordance with the same Alert Service Bulletin. This inspection and any subsequent repairs must be completed before further flight, and the initial inspection must be conducted within 48 hours after the effective date of the AD.
The obligations imposed by this AD include a stringent inspection regime for the specified aircraft models. Operators of HS 748 series aeroplanes are required to perform the inspection of the wing dry areas as per the detailed instructions provided in the Alert Service Bulletin. This involves checking for any chafing or damage to electrical cables that could potentially cause fuel leakage or electrical sparks, which were identified as the cause of a fire in a similar aircraft model. Furthermore, if any issues are found during the inspection, the operators must promptly address these by conducting the necessary repairs or replacements to ensure the aircraft's airworthiness and safety.
The AD outlines specific civil and criminal consequences for non-compliance with its requirements. While the regulations do not explicitly state maximum penalties, non-compliance with ADs is generally treated seriously under the Civil Aviation Safety Authority (CASA) regulations. Failure to adhere to the stipulated inspection and repair timelines could result in the aircraft being grounded, which would prevent it from operating until the required actions are taken. Additionally, continued operation of an aircraft in a non-compliant state could lead to enforcement actions, including fines, prosecution, and potential revocation of the aircraft's certificate of airworthiness. These outcomes underscore the importance of strict adherence to the directive to maintain aviation safety standards.