Commonwealth legislation

AD/EC 135/3 - Tail Boom Bearing Supports

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires operators of Eurocopter EC 135 helicopters (serial numbers 0001–0074) to carry out initial and repeat inspections of the tail‑boom bearing supports and to replace parts as directed by Eurocopter Deutschland Alert Service Bulletin EC 135‑53A‑004. The CASA delegate set a compliance deadline of 29 February 2000. Operators are responsible for performing and funding the inspections and replacements and must follow the bulletin's instructions to correct reported misalignment, corrosion and cracking.

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Current sections

Direct links to the current provisions in AD/EC 135/3 - Tail Boom Bearing Supports.

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 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.

AD/EC 135/3 Tail Boom Bearing Supports 2

AD/EC 135/3 Tail Boom Bearing Supports 2/2000

Applicability: All Model EC 135 helicopters, serial numbers 0001 through 0074.

Requirement: Initial and repeat inspections of the tail boom supports in accordance with Eurocopter Deutschland Alert Service Bulletin EC 135-53A-004.

Note: LBA AD 1998-389 refers.

Compliance: Accomplish the replacement before 29 February 2000, unless already accomplished. As specified in the Requirement document for the repetitive inspection requirement.

This Airworthiness Directive becomes effective on 24 February 2000.

Background: Some of the bearing supports on the tailboom were found to be out of alignment and/or not perpendicular to the drive shaft axis. In addition, a number of the current bearing supports have proved to be susceptible to corrosion and cracking.

Signature of Eugene Paul Holzapfel, Delegate of the Civil Aviation Safety Authority.

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 13 January 2000

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 27 January 2000.

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 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.

AD/EC 135/3 Tail Boom Bearing Supports 2 AD/EC 135/3 Tail Boom Bearing Supports 2/2000

AD/EC 135/3 Tail Boom Bearing Supports 2/2000

Applicability: All Model EC 135 helicopters, serial numbers 0001 through 0074.

Requirement: Initial and repeat inspections of the tail boom supports in accordance with Eurocopter Deutschland Alert Service Bulletin EC 135-53A-004.

Note: LBA AD 1998-389 refers.

Compliance: Accomplish the replacement before 29 February 2000, unless already accomplished. As specified in the Requirement document for the repetitive inspection requirement.

This Airworthiness Directive becomes effective on 24 February 2000.

Eugene Paul Holzapfel

Delegate of the Civil Aviation Safety Authority 13 January 2000

The above AD is notified in the Commonwealth of Australia Gazette on 27 January 2000.