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 revokes Airworthiness Directive (AD) AD/BELL 206/73 Amdt 6 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.
Bell Helicopter Textron Canada (BHTC) and Agusta Bell 206 Series Helicopters
AD/BELL 206/73
Amdt 7
Main Rotor Hub Pillow Block 13/2002
Applicability: Models 206A, 206BJRII, 206BJRIII, 206B-1, 206L, 206L-1 and 206L-3. All AB206A and AB206B up to S/N 8737.
Requirement: Action in accordance with Bell Helicopter ASB 206-97-90 or ASB 206L-97-108 or Agusta Bolletino Technico 206-227, depending on model.
Note: The requirement document specifies repetitive torque checks after installation of the pillow block hardware.
Compliance: Unless already accomplished, as specified in the requirement document for Bell models. Initially, inspect Agusta Bell models before 25 hours time in service after 27 April 1995.
This Amendment becomes effective on 26 December 2002.
Background: The manufacturer introduced improved retention hardware in order to resolve the loss of pillow block clamp bolt/nut preload.
Amendment 6 was issued to include Agusta Bell helicopter models in the applicability.
This amendment is issued to update the requirement section with the latest applicable service bulletins. The compliance date and times are unaffected by this amendment.
Amendment 6 of this Airworthiness Directive became effective on 27 April 1995. Amendment 5 of this Airworthiness Directive became effective on 4 March 1993.
David Alan Villiers
Delegate of the Civil Aviation Safety Authority 14 November 2002
The above AD is notified in the Commonwealth of Australia Gazette on 4 December 2002.
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Overview
The Civil Aviation Regulations 1998, which were enacted by the Commonwealth Parliament, form part of the legislative framework governing civil aviation in Australia. One aspect of these regulations involves issuing Airworthiness Directives (ADs) to ensure the safety of aircraft and aeronautical products. In 2002, the Civil Aviation Safety Authority (CASA) issued Airworthiness Directive AD/BELL 206/73 Amdt 7 to address a specific safety issue identified in certain models of Bell and Agusta Bell 206 Series Helicopters. This AD aimed to correct an unsafe condition related to the main rotor hub pillow block by requiring corrective action in accordance with the latest service bulletins from the manufacturers. This was an update to previous amendments that had been made to include additional models and to ensure compliance with the most current safety requirements.
Scope and Application
The Airworthiness Directive (AD) AD/BELL 206/73 Amdt 7 pertains to specific models of Bell Helicopter Textron Canada (BHTC) and Agusta Bell 206 Series helicopters, including models 206A, 206BJRII, 206BJRIII, 206B-1, 206L, 206L-1, and 206L-3, as well as all AB206A and AB206B helicopters up to serial number 8737. This AD, issued under the Civil Aviation Regulations 1998, mandates corrective actions to address an unsafe condition related to the main rotor hub pillow block, necessitating adherence to specific service bulletins. The AD applies to all relevant aircraft within the specified models, ensuring compliance with the stipulated requirements and timeframes to maintain airworthiness standards. The directive becomes effective from 26 December 2002, with the compliance period commencing from the specified dates in the requirement section for Bell models and 25 hours of time in service post 27 April 1995 for Agusta Bell models. The AD is issued by a delegate of the Civil Aviation Safety Authority (CASA) and is published in the Commonwealth of Australia Gazette to ensure widespread dissemination and adherence.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandates the Civil Aviation Safety Authority (CASA) to issue Airworthiness Directives (AD) to ensure the safety of aviation operations. The particular AD under discussion, AD/BELL 206/73 Amdt 7, applies to certain models of Bell Helicopter Textron Canada (BHTC) and Agusta Bell 206 Series Helicopters (section 13/2002). The directive concerns the main rotor hub pillow block, which has been subject to previous amendments, including AD/BELL 206/73 Amdt 6. This amendment revises the requirements for correcting an unsafe condition associated with the loss of pillow block clamp bolt/nut preload.
The AD outlines specific actions that must be taken, which are detailed in the requirement section. For Bell models, the actions must align with Bell Helicopter ASB 206-97-90 or ASB 206L-97-108, while for Agusta models, the actions must follow Agusta Bolletino Technico 206-227. The directive mandates repetitive torque checks post-installation of the pillow block hardware. It also specifies that Agusta Bell models must be inspected before 25 hours of time in service following 27 April 1995. Compliance with the AD is crucial to rectify the identified unsafe condition effectively.
Entities and individuals governed by the AD have specific obligations. Operators of the affected helicopters must adhere to the detailed instructions provided in the requirement section of the AD. This includes conducting the necessary inspections and maintenance actions as specified by the applicable service bulletins. Compliance with these requirements ensures the continued airworthiness of the helicopters and mitigates the risk of accidents or incidents related to the unsafe condition.
Failure to comply with the AD may result in civil or criminal consequences. Although the specific penalties are not detailed in the provided text, non-compliance with ADs can generally lead to severe repercussions, including fines, penalties, and potential criminal charges. The severity of the penalties often depends on the extent of non-compliance and its impact on aviation safety. Operators must ensure they meet all the stipulated requirements to avoid any legal or financial consequences.