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 revokes Airworthiness Directive (AD) AD/ARRIEL/14 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.
Turbomeca Turbine Engines - Arriel Series
AD/ARRIEL/14
Amdt 1
Centrifugal Impeller 6/2002
Applicability: All Arriel 1D,1D1,1S, and 1S1 not incorporating Mod TU300 and Mod TU316A.
Requirement: 1. Carry out Mod TU300; installation of a sleeve in the bleed valve boss as described in Turbomeca Service Bulletin (SB) No. 292 72 0261; and
2. Carry out Mod TU316A; bonding of sleeve as described in Turbomeca SB No. 292 72 0275 Update 2
Note: DGAC AD 2002-126(A) refers.
Compliance: Unless previously accomplished; within 100 hours time in service or prior to 31 July 2002, whichever occurs first.
This amendment becomes effective on 13 June 2002.
Background: This Directive was originally issued to require the installation of a sleeve into the bleed valve boss. In service experience has shown the necessity to bond the sleeve in the bleed valve boss. This amendment mandates the incorporation of Mod TU316A to engines incorporating Mod TU300.
The original issue of this Airworthiness Directive became effective on 30 December 1999.
James Coyne
Delegate of the Civil Aviation Safety Authority 3 May 2002
The above AD is notified in the Commonwealth of Australia Gazette on 22 May 2002.
Overview
The Civil Aviation Regulations 1998, enacted by the Commonwealth of Australia, was introduced to address the need for consistent and comprehensive regulation of civil aviation safety within the country. The regulations aim to ensure the safety of air travel by setting standards for aircraft, personnel, and operations. The Civil Aviation Safety Authority, a delegate of the Commonwealth, enacts Airworthiness Directives under the authority granted by the Civil Aviation Regulations 1998 to address specific safety concerns identified in aircraft or aeronautical products. This Airworthiness Directive, AD/ARRIEL/14, was issued to address the safety concerns associated with the Arriel Series Turbomeca Turbine Engines. The policy objective of this directive is to mandate corrective actions to mitigate the risk of unsafe conditions and ensure the continued airworthiness of affected aircraft.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 106, outlines the scope and application of Airworthiness Directives (AD) issued by the Civil Aviation Safety Authority (CASA). This particular AD targets the Arriel series turbomeca turbine engines, specifically those models Arriel 1D, 1D1, 1S, and 1S1 that do not incorporate modifications TU300 and TU316A. The directive applies to all such engines within the Australian jurisdiction, mandating certain modifications to ensure safety and airworthiness. The AD requires the installation of a sleeve in the bleed valve boss (Mod TU300) and bonding of the sleeve (Mod TU316A), as detailed in specific Turbomeca Service Bulletins. Compliance with these requirements must be achieved within 100 hours of time in service or before 31 July 2002, whichever comes first. This AD extends its reach to all operators of the specified engines, enforcing safety measures through the regulatory framework established by CASA.
Key Provisions
The Civil Aviation Regulations 1998, specifically under Part 39 - 106, mandate the Civil Aviation Safety Authority (CASA) to issue Airworthiness Directives (AD) aimed at ensuring the safety of aircraft and aeronautical products. This particular AD, AD/ARRIEL/14, focuses on the Arriel series of Turbomeca turbine engines, namely the Arriel 1D, 1D1, 1S, and 1S1 models, excluding those that have already incorporated modifications TU300 and TU316A (section 3). The primary requirement of this AD is the installation of a specific modification, Mod TU300, which involves the installation of a sleeve in the bleed valve boss, as outlined in Turbomeca Service Bulletin No. 292 72 0261. Furthermore, it mandates the bonding of the sleeve in the bleed valve boss, as described in Turbomeca Service Bulletin No. 292 72 0275 Update 2, which is known as Mod TU316A. These modifications are necessary to address an unsafe condition identified with the engines (section 4).
Entities and individuals governed by these regulations are required to comply with the directives within the specified timeframe. Owners and operators of the affected Arriel engines must ensure that the required modifications are carried out within 100 hours of the engine's time in service or before 31 July 2002, whichever comes first. This requirement applies unless the modifications have already been accomplished (section 5). The AD is effective from 13 June 2002, and its compliance is mandatory for the safety of the aircraft and its occupants (section 6).
Failure to comply with the provisions of this Airworthiness Directive can lead to significant consequences. Non-compliance may result in the aircraft being deemed unsafe for operation, which can lead to grounding and potential legal ramifications for the aircraft owner or operator. Additionally, any accidents or incidents that occur due to the non-compliance with these safety directives could result in severe penalties, including fines and imprisonment for the responsible parties. The exact penalties and consequences would be determined by the relevant aviation safety authorities and could vary based on the severity of the breach and its impact on aviation safety (section 7).