Commonwealth legislation

AD/PW200/1 - Low Cycle Fatigue Count

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Commonwealth

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legislative instrument

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This Airworthiness Directive requires operators of the listed Pratt & Whitney PW200-series engines to verify low-cycle fatigue (LCF) counts recorded in the engine Data Collection Unit and engine log books by performing a comparison and consistency check per ASB A28252 Revision 2, and to restore baseline LCF life by manual counting where needed. If any LCF‑critical part is found beyond its published life it must be replaced. The AD is issued under CASR subreg 39.1(1); operators carry the compliance costs (data checks, manual counting, possible part replacements) and must follow ASB paragraphs 3.C, 3.D and 3.E.

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AIRWORTHINESS DIRECTIVE

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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 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.

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Pratt and Whitney Canada Turbine Engines - PW200 Series

AD/PW200/1 Low Cycle Fatigue Count 9/200

AD/PW200/1 Low Cycle Fatigue Count 9/2004 DM

Applicability: All Pratt & Whitney Canada (P&WC) PW206B engines that have incorporated Service Bulletin (SB) 28119 or its later revisions;

All PW206C engines that have incorporated SB 28151 or SB 28165 or their later revisions;

All PW206E engines;

All PW207D engines; and All PW207E engines.

Note 1: The above engines are installed on, but not limited to, Augusta 109E, Bell 427, Eurocopter EC135, and MD Explorer helicopters.

Requirement: 1. For installed engines - Confirm that the data stored in the Data Collection Unit (DCU) is correct and that data recorded in the engine log books is correct, perform a Comparison Check and a Consistency Check as follows:

Comparison Check: Perform a comparison check of the data stored by the DCU as per the Accomplishment Instructions identified in ASB A28252, Revision 2, paragraph 3.C. Interpret the results of the comparison check as per ASB A28252, Revision 2, paragraphs 3.C.9.a. and 3.C.9.b. If necessary, restore the baseline LCF life of components using manual counting as indicated in ASB A28252, Revision 2, paragraph 3.E.

Consistency Check: Perform a consistency check by reviewing the engine log books to confirm the Impeller, CT, and PT disks Low Cycle Fatigue (LCF) counts are correct in accordance with ASB A28252, Revision 2, Accomplishment Instructions, paragraph 3.D. Interpret the results as per paragraphs 3.D.5. and 3.D.6. If necessary, restore the baseline LCF life of components using manual counting as indicated in ASB A28252, Revision 2, paragraph 3.E.

2. If, during the Requirement 1 checks, any LCF critical component is found

exceeding its published life replace the component.

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

Pratt and Whitney Canada Turbine Engines - PW200 Series

AD/PW200/1 Low Cycle Fatigue Count 9/200 AD/PW200/1 Low Cycle Fatigue Count 9/2004 DM

AD/PW200/1 Low Cycle Fatigue Count 9/2004 DM

Applicability: All Pratt & Whitney Canada (P&WC) PW206B engines that have incorporated Service Bulletin (SB) 28119 or its later revisions;

All PW206C engines that have incorporated SB 28151 or SB 28165 or their later revisions;

All PW206E engines;

All PW207D engines; and All PW207E engines.

Note 1: The above engines are installed on, but not limited to, Augusta 109E, Bell 427, Eurocopter EC135, and MD Explorer helicopters.

2. If, during the Requirement 1 checks, any LCF critical component is found