Commonwealth legislation

AD/T5508D/2 - Compressor Bleed Bands

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legislative instrument

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This Airworthiness Directive mandates replacement of specific parts on Honeywell (Avco Lycoming) T5508D engines: replace retaining plate spacers P/N 2-160-147-02 with P/N 2-160-561-01 and bleed bands P/N 2-161-182-01 with P/N 2-161-182-03, following Avco Lycoming S/B 5508-0007 (Applicability; Requirement). CASA’s delegate issues the AD under CASR 1998 subreg 39.1(1); operators must bear the cost and comply before an Australian certificate of airworthiness is issued because bleed-band failure can cause engine power loss (first paragraph; Compliance; Background).

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AIRWORTHINESS DIRECTIVE

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 CASR 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.

View image in the official source

Honeywell International Turbine Engines - T5508D Series

AD/T5508D/2 Compressor Bleed Bands 7/200

AD/T5508D/2 Compressor Bleed Bands 7/2003

Applicability: Honeywell (Avco Lycoming) T5508D engines fitted with Part Number (P/N) 2-160- 147-02 retaining plate spacers and P/N 2-161-182-01 compressor air bleed bands.

Requirement: Replace P/N 2-160-147-02 retaining plate spacers with P/N 2-160-561-01 retainers in accordance with Avco Lycoming Service Bulletin (S/B) 5508-0007, and

Replace P/N 2-161-182-01 compressor air bleed bands with P/N 2-161-182-03 compressor air bleed bands in accordance with Avco Lycoming S/B 5508-0007.

Note: FAA AD 76-12-05 refers.

Compliance: Prior to issue of an Australian certificate of airworthiness.

This Airworthiness Directive becomes effective on 10 July 2003.

Background: Failure of the bleed band can lead to power loss from the engine. Replacement of certain parts will allow proper operation of the bleed band system.

Signature of Jim Coyne Delegate of the Civil Aviation Safety Authority

Jim Coyne

Delegate of the Civil Aviation Safety Authority 26 May 2003

View image in the official source

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

Honeywell International Turbine Engines - T5508D Series

AD/T5508D/2 Compressor Bleed Bands 7/200 AD/T5508D/2 Compressor Bleed Bands 7/2003

AD/T5508D/2 Compressor Bleed Bands 7/2003

Applicability: Honeywell (Avco Lycoming) T5508D engines fitted with Part Number (P/N) 2-160- 147-02 retaining plate spacers and P/N 2-161-182-01 compressor air bleed bands.

Requirement: Replace P/N 2-160-147-02 retaining plate spacers with P/N 2-160-561-01 retainers in accordance with Avco Lycoming Service Bulletin (S/B) 5508-0007, and

Replace P/N 2-161-182-01 compressor air bleed bands with P/N 2-161-182-03 compressor air bleed bands in accordance with Avco Lycoming S/B 5508-0007.

Note: FAA AD 76-12-05 refers.

Compliance: Prior to issue of an Australian certificate of airworthiness.

This Airworthiness Directive becomes effective on 10 July 2003.

Background: Failure of the bleed band can lead to power loss from the engine. Replacement of certain parts will allow proper operation of the bleed band system.

Jim Coyne

Delegate of the Civil Aviation Safety Authority 26 May 2003