AD/BELL 204/6 Amdt 13 - Main Rotor Mast and Trunnion - Retirement Index Number (RIN) Recount/Inspection

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Legislation au F2013L01470 In force Legislative Instrument

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Explanatory Statement

 

Civil Aviation Safety Regulations 1998

 

AD/BELL 204/6 Amdt 13 Main Rotor Mast and Trunnion - Retirement Index Number (RIN) Recount / Inspection

 

Under section 98 of the Civil Aviation Act 1988 (the Act), the Governor-General may make regulations for the Act and in the interests of the safety of air navigation. Under regulation 39.001 of the Civil Aviation Safety Regulations 1998 (CASR 1998), CASA may issue airworthiness directives (ADs) for kinds of aircraft or aeronautical products. Subregulation 39.001 (5) of CASR 1998 provides that an AD is a disallowable instrument for the purposes of section 46A of the Acts Interpretation Act 1901. Therefore, in accordance with section 6 of the Legislative Instruments Act 2003, an AD is a legislative instrument.

 

Under subsection 33(3) of the Acts Interpretation Act 1901, where an Act confers a power to make, grant or issue any instrument of a legislative or administrative character (including rules, regulations or by laws) the power shall be construed as including a power exercisable in the like manner and subject to the like conditions (if any) to repeal, rescind, revoke, amend, or vary any such instrument.

 

Under Annex 8 to the Convention on International Civil Aviation, the State of Design has overall responsibility for continuing airworthiness of an aircraft type, and must provide any information necessary to ensure the continuing airworthiness of a type to appropriate States of Registry. ADs (and their equivalents) are the most common form of continuing airworthiness information, and are issued by most ICAO Contracting States.

 

The State of Registry of an individual aircraft is responsible for its continuing airworthiness. Under Annex 8, the State of Registry must develop or adopt requirements to ensure the continuing airworthiness of aircraft.  When a State of Design issues an AD against a type of aircraft on the Australian Register, CASA, as Australia’s national airworthiness authority, must assess that information and, if appropriate, issue an Australian AD to mandate the requirements of the State of Design.

 

AD/BELL 204/6 Amdt 13 applies to the Bell 204 series helicopters.

This AD required operators to retire bolts connecting the Drive Link to Rotating Swashplate at 500 hours Time in Service (TIS).  A request from industry to CASA came to allow retiring the aforesaid bolts at 1000 hours TIS instead.  CASA reviewed the request and found that TIS of 1000 hours per Bell Helicopter Textron Maintenance and Overhaul Manual BHT-204B-M&O-1 was adequate.  This amendment also makes reference to FAA AD 2000-15-52, Amendment 39-12042 for inspection of main rotor mast and trunnion.  This amendment also notates the acceptability of an FAA approved Alternate Means of Compliance (AMOC) for compliance with the equivalent requirement of this AD.  As a result the AD has been revised and Amendment 13 has been prepared.  The amended AD, AD/BELL 204/6 Amdt 13, will become effective on 2 August 2013.  This AD cancels and replaces the previous issue.

 

Consultation

This amendment is being made at the request of industry, in particular an operator of Bell 204 series helicopters.  As this AD amendment is of a minor or machinery nature and does not substantially alter existing arrangements no further consultation of the Australian public has taken place.

 

The Office of Regulatory Review has determined that ADs do not require a Regulatory Impact Statement.

 

Compatibility with human rights and freedoms

A statement of compatibility with human rights is at Attachment 1.

 

Commencement and making

The instrument commences on 2 August 2013.

 

The AD has been made by a delegate of CASA relying on the power of delegation under subregulation 11.260 (1) of CASR 1998 and subsection 94 (1) of the Act.

 

[Instrument number AD/BELL 204/6 Amdt 13]

Attachment 1

Statement of Compatibility with Human Rights

Prepared in accordance with Part 3 of the
Human Rights (Parliamentary Scrutiny) Act 2011

 

AD/BELL 204/6 Amdt 13 Main Rotor Mast and Trunnion - Retirement Index Number (RIN) Recount / Inspection

 

This legislative instrument is compatible with the human rights and freedoms recognised or declared in the international instruments listed in section 3 of the Human Rights (Parliamentary Scrutiny) Act 2011.

 

Overview of the legislative instrument

 

As a result of a request from industry, CASA has amended AD/BELL 204/6 Amdt 12 to remove the requirement for retiring bolts connecting the Drive Link to Rotating Swashplate at 500 hours Time in Service (TIS).  Current TIS of 1000 hours per Bell Helicopter Textron Maintenance and Overhaul Manual BHT-204B-M&O-1 is considered adequate.  This amendment also makes reference to FAA AD 2000-15-52, Amendment 39-12042 for inspection of main rotor mast and trunnion.  This amendment also notates the acceptability of an FAA approved AMOC for compliance with the equivalent requirement of this AD.  The amended AD, AD/BELL 204/6 Amdt 13, will become effective on 2 August 2013.  This AD cancels and replaces the previous issue.

 

Human rights implications

 

This legislative instrument does not engage any of the applicable rights or freedoms.

 

Conclusion

 

This legislative instrument is compatible with human rights as it does not raise any human rights issues.

 

Civil Aviation Safety Authority

Overview

The Civil Aviation Safety Regulations 1998, as amended by AD/BELL 204/6 Amdt 13, was introduced to address an industry request for a change in the retirement index number for specific bolts on Bell 204 series helicopters. This amendment, enacted in 2013, allows operators to retire the bolts connecting the Drive Link to Rotating Swashplate at 1000 hours Time in Service (TIS) instead of the previously mandated 500 hours TIS, based on the adequacy of the new time frame as per Bell Helicopter Textron Maintenance and Overhaul Manual BHT-204B-M&O-1. The amendment also incorporates the inspection of the main rotor mast and trunnion as per FAA AD 2000-15-52, Amendment 39-12042, and acknowledges the acceptability of an FAA approved Alternate Means of Compliance (AMOC) for equivalent requirements. The Civil Aviation Safety Authority (CASA) issued this amendment in response to industry feedback, reflecting its commitment to maintaining safety standards while accommodating practical operational needs.

Scope and Application

The Civil Aviation Safety Regulations 1998, as amended by AD/BELL 204/6 Amdt 13, applies to operators of Bell 204 series helicopters registered in Australia. This amendment concerns the retirement index number (RIN) recount and inspection of the main rotor mast and trunnion. It responds to an industry request to extend the retirement time in service (TIS) for certain bolts from 500 hours to 1000 hours. The amendment references FAA AD 2000-15-52, Amendment 39-12042, and acknowledges the acceptability of an FAA approved Alternate Means of Compliance (AMOC) for compliance with equivalent requirements. The AD, which will become effective on 2 August 2013, cancels and replaces the previous issue. This regulatory amendment is made under the authority conferred by the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998, and it operates within the jurisdictional reach of Australia as a Contracting State to the Convention on International Civil Aviation. No further consultation with the public has been deemed necessary due to the minor nature of the amendment.

Key Provisions

The Civil Aviation Safety Regulations 1998 (CASR 1998) under section 98 of the Civil Aviation Act 1988 (the Act) empower the Governor-General to make regulations for the Act, particularly in the interest of air navigation safety. Regulation 39.001 of the CASR 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. Subregulation 39.001(5) of the CASR 1998 stipulates that an AD is a disallowable instrument for the purposes of section 46A of the Acts Interpretation Act 1901, making it a legislative instrument under section 6 of the Legislative Instruments Act 2003. Operators of Bell 204 series helicopters must adhere to the provisions of AD/BELL 204/6 Amdt 13, which concerns the retirement index number (RIN) recount and inspection of the main rotor mast and trunnion. This AD, effective from 2 August 2013, cancels and replaces the previous AD/BELL 204/6 Amdt 12. It responds to industry requests to extend the retirement time in service (TIS) of bolts connecting the Drive Link to the Rotating Swashplate from 500 hours to 1000 hours, based on the Bell Helicopter Textron Maintenance and Overhaul Manual BHT-204B-M&O-1. The amendment also references FAA AD 2000-15-52, Amendment 39-12042 for the inspection of the main rotor mast and trunnion and acknowledges the acceptability of an FAA-approved Alternate Means of Compliance (AMOC) for equivalent requirements. Operators must ensure that they comply with the AD by following the new TIS of 1000 hours for the specified bolts and conducting the necessary inspections as per the AD/BELL 204/6 Amdt 13. Failure to comply with the AD may result in the aircraft being considered unairworthy, leading to potential enforcement actions by CASA. CASA, as Australia’s national airworthiness authority, has the power to take necessary steps to enforce compliance with the AD. The AD/BELL 204/6 Amdt 13 includes provisions for offences and penalties. While the specific penalties are not detailed in the explanatory statement, non-compliance with CASA regulations can generally result in enforcement actions such as fines, suspension or revocation of aircraft certificates, and potential criminal charges under the Act for serious breaches. The AD is made by a delegate of CASA under the authority of subregulation 11.260(1) of CASR 1998 and subsection 94(1) of the Act.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.