Commonwealth legislation

AD/UH-1/18 - Main Rotor Tension-Torsion Strap

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Commonwealth

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legislative instrument

Plain English Summary

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This AD, issued by a CASA delegate and referencing FAA AD 2002-20-01, requires operators of the listed Bell and Southwest Florida Aviation helicopters to remove and replace specified main-rotor tension‑torsion (TT) straps at 1,200 hours TIS or 24 months after installation, whichever is earlier. It aims to prevent TT strap failure and loss of control. Operators bear replacement costs, must track strap hours/installation dates, and may not fly affected aircraft after 30 October 2002 unless compliant.

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AIRWORTHINESS DIRECTIVE

View image in the official source

View image in the official source
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.

Bell UH-1 Series Helicopters

AD/UH-1/18 Main Rotor Tension-Torsion St

AD/UH-1/18 Main Rotor Tension-Torsion Strap 13/2002

Applicability: Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L,

and UH-1P; and Southwest Florida Aviation Model SW204, SW204HP, SW205 and SW205A-1 helicopters, manufactured by Bell Helicopter Textron Inc. (BHTI) for the armed forces of the United States, with main rotor tension-torsion (TT) strap, part number 204-012-122-1, 204-012-122-5, 2601399, or 2606650, installed.

Requirement: Remove and replace any TT strap with 1,200 hours total time in service or 24 months since the initial installation, whichever occurs first.

Note: FAA AD 2002-20-01 Amdt 39-12895 refers.

Compliance: Before further flight after 30 October 2002.

This Airworthiness Directive becomes effective on 30 October 2002.

Background: This Directive is prompted by the FAA requirement to update the product identification, extend the application to other models, continuing the existing retirement time for certain main rotor TT straps, and adding TT strap part numbers to the applicability. The actions required by this Directive are intended to prevent failure of a TT strap, loss of a main rotor blade, and subsequent loss of control of the helicopter.

Signature of David Alan Villiers Delegate of the Civil Aviation Safety Authority

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 24 October 2002

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 30 October 2002.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

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.

Bell UH-1 Series Helicopters

AD/UH-1/18 Main Rotor Tension-Torsion St AD/UH-1/18 Main Rotor Tension-Torsion Strap 13/2002

AD/UH-1/18 Main Rotor Tension-Torsion Strap 13/2002

Applicability: Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L,

Requirement: Remove and replace any TT strap with 1,200 hours total time in service or 24 months since the initial installation, whichever occurs first.

Note: FAA AD 2002-20-01 Amdt 39-12895 refers.

Compliance: Before further flight after 30 October 2002.

This Airworthiness Directive becomes effective on 30 October 2002.

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 24 October 2002

The above AD is notified in the Commonwealth of Australia Gazette on 30 October 2002.