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 revokes Airworthiness Directive (AD) AD/JETSTREAM/21 Amdt 2 and issues the following 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.
British Aerospace BAe 3100 (Jetstream) Series Aeroplanes
AD/JETSTREAM/21
Amdt 3
Main Landing Gear Pintle Housing 10/2003
Applicability: Model Jetstream Series 3100 aircraft, fitted with main landing gears as defined in BAe (Dynamics) Limited Service Bulletin 32-19 and APPH Service Bulletin 32-40.
Requirement: Inspect in accordance with BAE Systems Mandatory Service Bulletin 32-A- JA851226 Revision 4.
Compliance: As specified in the Requirement document.
This Amendment becomes effective on 2 October 2003.
Background: The manufacturer received reports of cracks in the yoke pintle housing for the landing gear attachment spigot of the main leg forging. Cracks have been attributed to stress corrosion.
Amendment 2 changed applicability and introduced a terminating action.
Amendment 3 is issued in response to the latest revision of the Requirement document, which introduces an APPH service bulletin that requires NDT inspections of affected pintle housings of the main landing gear.
Amendment 2 of this Airworthiness Directive became effective on 21 March 1991.
The original issue of this Airworthiness Directive became effective on 20 November 1987.
David Villiers
Delegate of the Civil Aviation Safety Authority 19 August 2003
The above AD is notified in the Commonwealth of Australia Gazette on 10 September 2003.
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Overview
The Civil Aviation Safety Regulations 1998, as amended by the Civil Aviation Safety Regulations 1998, Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, address the issue of ensuring the safety of aircraft and aeronautical products through mandatory directives. This legislative instrument was enacted to fill the gap in ensuring that aircraft maintain their airworthiness through periodic inspections and necessary corrective actions. The Civil Aviation Safety Authority (CASA), as the delegate of the Commonwealth of Australia, issues these directives to mandate specific actions for correcting unsafe conditions. The policy objective behind these regulations is to maintain high safety standards in civil aviation, ensuring that aircraft remain in a condition safe for operation. The directives are designed to respond to emerging safety issues by providing clear instructions on inspections and necessary maintenance actions to be taken by aircraft operators.
Scope and Application
The Civil Aviation Safety Regulations 1998 (CASR), specifically Part 39 - 105, mandate the requirements for maintaining the airworthiness of aircraft in Australia, with the Civil Aviation Safety Authority (CASA) playing a pivotal role in overseeing compliance. The Airworthiness Directive (AD) AD/JETSTREAM/21 Amdt 3, issued under the authority of a CASA delegate, applies to the British Aerospace BAe 3100 (Jetstream) Series Aeroplanes that are fitted with main landing gears as defined in specific service bulletins. This directive is crucial for ensuring the safety of these aircraft by addressing potential issues with the main landing gear pintle housing, which has been found to be susceptible to stress corrosion cracks. The requirement for inspection and compliance must adhere to the latest revision of the BAE Systems Mandatory Service Bulletin 32-A- JA851226 Revision 4. This AD became effective on 2 October 2003, superseding previous amendments to incorporate updated safety measures and address emerging safety concerns within the specified aviation industry.
Key Provisions
The Airworthiness Directive (AD) AD/JETSTREAM/21 Amdt 3 issued under section 39.1(1) of the Civil Aviation Safety Regulations 1998 (CASR 1998) pertains specifically to the British Aerospace BAe 3100 (Jetstream) Series Aeroplanes, particularly those fitted with main landing gears as defined in the relevant service bulletins. The directive requires an inspection of the main landing gear pintle housing to be conducted in accordance with the instructions set out in BAE Systems Mandatory Service Bulletin 32-A-JA851226 Revision 4. This inspection is necessary to address the issue of stress corrosion cracks that have been reported in the yoke pintle housing of the landing gear attachment spigot of the main leg forging. The compliance with this directive must occur as specified within the Requirement document, and the AD became effective on 2 October 2003.
The AD imposes a specific obligation on the owners or operators of the affected Jetstream Series 3100 aircraft to ensure that the required inspections are conducted as per the stipulated guidelines. This obligation extends to following the detailed instructions provided in the BAE Systems Mandatory Service Bulletin 32-A-JA851226 Revision 4 to accurately identify and address any potential issues with the main landing gear pintle housing. Failure to comply with the AD could result in the aircraft being deemed unairworthy, thus preventing its operation until the required inspections and any necessary repairs are completed.
In terms of consequences for non-compliance, while the AD itself does not explicitly state civil or criminal penalties, the broader CASR 1998 provides a framework under which non-compliance with ADs can lead to enforcement actions. These actions could include fines, legal proceedings, and potentially grounding the aircraft until the required compliance is achieved. The seriousness of the issue, given the potential safety implications of stress corrosion in critical components, underscores the importance of adhering to the AD. Operators are expected to meticulously follow the AD to ensure the continued airworthiness and safety of the Jetstream Series 3100 aircraft.