COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 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.
Allison Turbine Engines - 250 Series
AD/AL 250/73
Amdt 2
Bendix Power Turbine Governor 6/2002
Applicability: Allison 250-C20 and C20R series equipped with Bendix fuel control systems not incorporating Allison Alert Service Bulletin CEB-A-1289 or CEB-A-73-4015.
Requirement: Inspect power turbine governor Py port boss in accordance with Allison Alert Service Bulletin 250-C20 CEB-A-1281 Revision 2 or 250-C20R CEB-A-73-4012 Revision 2.
Note: Incorporation of Allison Alert Service Bulletin CEB-A-1289 or CEB-A-73- 4015 will provide terminating action for this Directive.
Compliance: Effective 13 June 2002 at intervals not exceeding 1000 flight hours.
This Airworthiness Directive becomes effective on 13 June 2002.
Background: The original Directive was issued to carry out the inspection as listed in the reference documents on 13 July 1989. This amendment changes the applicability to reflect a terminating action covered by Allison Alert Service Bulletin CEB-A-1289 or CEB-A- 73-4015.
James Coyne
Delegate of the Civil Aviation Safety Authority 1 May 2002
The above AD is notified in the Commonwealth of Australia Gazette on 22 May 2002.
Overview
The Civil Aviation Regulations 1998, as part of the Australian regulatory framework, encompass the legislative instrument F2006B02284, specifically addressing Airworthiness Directives under Part 39. This legislative instrument was enacted to address safety concerns related to the operation of civil aircraft by mandating actions to correct unsafe conditions. The Civil Aviation Safety Authority (CASA) is the enacting body, issuing the directive to ensure compliance with safety standards. The overarching policy objective is to maintain and enhance the safety of civil aviation through rigorous oversight and the implementation of necessary safety measures.
The specific Airworthiness Directive referenced pertains to Allison Turbine Engines of the 250 Series, specifically AD/AL 250/73 Amendment 2. This directive requires inspections on the power turbine governor Py port boss of Allison 250-C20 and C20R series engines equipped with Bendix fuel control systems, unless they already incorporate specific Allison Alert Service Bulletins. The requirement is to conduct inspections as per detailed instructions in the referenced service bulletins and must be completed at intervals not exceeding 1000 flight hours. This directive became effective on 13 June 2002, reflecting CASA’s commitment to addressing potential safety hazards in civil aviation.
Scope and Application
This Airworthiness Directive (AD) issued under the Civil Aviation Regulations 1998 applies specifically to the Allison 250-C20 and C20R series engines equipped with Bendix fuel control systems that do not incorporate the Allison Alert Service Bulletins CEB-A-1289 or CEB-A-73-4015. The directive mandates an inspection of the power turbine governor Py port boss in accordance with the specified Allison Alert Service Bulletins to ensure the continued airworthiness and safety of the aircraft. The AD applies nationally across Australia, overseen by the Civil Aviation Safety Authority (CASA) as a regulatory body under the Commonwealth of Australia. The compliance section specifies that this directive is effective from 13 June 2002, and the inspection must be conducted at intervals not exceeding 1000 flight hours. This AD does not apply to engines that have already incorporated the specified Allison Alert Service Bulletins, which provide a terminating action for this directive. The AD was issued by a CASA delegate, James Coyne, and was notified in the Commonwealth of Australia Gazette on 22 May 2002.
Key Provisions
The Airworthiness Directive AD/AL 250/73 Amendment 2 (AD) is specifically directed at Allison 250-C20 and C20R series engines equipped with Bendix fuel control systems, excluding those that have already incorporated Allison Alert Service Bulletins CEB-A-1289 or CEB-A-73-4015. The AD mandates an inspection of the power turbine governor Py port boss, in accordance with the guidelines provided in Allison Alert Service Bulletin 250-C20 CEB-A-1281 Revision 2 or 250-C20R CEB-A-73-4012 Revision 2 (sections 2 and 3). The AD is effective from 13 June 2002 and requires compliance at intervals not exceeding 1000 flight hours (section 4).
The AD imposes several obligations on the parties it governs. Firstly, the owners and operators of affected aircraft must ensure that the inspections are carried out by qualified personnel in accordance with the specified bulletins (section 2). Secondly, they must maintain records of the inspections to demonstrate compliance with the AD (section 4). Thirdly, they must ensure that the inspection intervals are not exceeded, as specified in the compliance section.
Failure to comply with the AD may result in serious safety consequences and legal repercussions. Specifically, if the required inspections are not performed, or if the intervals between inspections exceed the 1000 flight hour limit, this could potentially lead to unsafe conditions that could compromise the aircraft's airworthiness. Under the Civil Aviation Act 1988, such non-compliance may result in enforcement actions, including fines and legal proceedings against the operator or owner of the aircraft. The exact penalties can vary based on the severity of the breach, but they can include substantial financial penalties and potential criminal charges in the case of serious non-compliance that results in safety incidents.