# Proposed AD 98-ANE-61-AD: Pratt & Whitney PW2000 Series Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-21-09
- Products: Pratt & Whitney
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 18, 2004, 69 FR 51198
- Comments due: October 18, 2004
- Became: [AD 2000-21-09](https://openairdocs.org/ad/2000-21-09)
- Docket: 98-ANE-61-AD
- FR document: 04-18919
- Official PDF: https://openairdocs.org/files/sha256/e6/bd/e6bda1e9d169258fdc8826f92fb252c545c84e84f8dc7a07bca087ba6cf8eadf (from https://www.govinfo.gov/content/pkg/FR-2004-08-18/pdf/04-18919.pdf)
- Federal Register: https://www.federalregister.gov/documents/2004/08/18/04-18919/airworthiness-directives-pratt-and-whitney-pw2000-series-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C0A10CF38A33253986256EF400583444.0001
- Page: https://openairdocs.org/proposed/98-ANE-61-AD

## Summary

The FAA proposes to supersede an existing airworthiness directive (AD) for Pratt & Whitney (PW) PW2000 series turbofan engines. That AD currently requires revisions to the engine manufacturer's time limits section (TLS) to include enhanced inspection of selected critical life-limited parts at each piece-part opportunity. This proposed AD would modify the airworthiness limitations section of the manufacturer's manual and an air carrier's approved continuous airworthiness maintenance program to incorporate additional inspection requirements. An FAA study of in-service events involving uncontained failures of critical rotating engine parts has indicated the need for mandatory inspections. The mandatory inspections are needed to identify those critical rotating parts with conditions, which if allowed to continue in service, could result in uncontained failures. We are proposing this AD to prevent critical life-limited rotating engine part failure, which could result in an uncontained engine failure and damage to the airplane.

## Notices in this docket

- Aug 31, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-23361, comments due Nov 30, 1998 (https://www.federalregister.gov/documents/1998/08/31/98-23361/airworthiness-directives-pratt-and-whitney-pw2000-series-turbofan-engines)
- Oct 8, 1999: Notice of proposed rulemaking (NPRM)., FR document 99-26207, comments due Dec 7, 1999 (https://www.federalregister.gov/documents/1999/10/08/99-26207/airworthiness-directives-pratt-and-whitney-pw2000-series-turbofan-engines)
- Nov 1, 2001: Notice of proposed rulemaking (NPRM)., FR document 01-27432, comments due Dec 31, 2001 (https://www.federalregister.gov/documents/2001/11/01/01-27432/airworthiness-directives-pratt-and-whitney-pw2000-series-turbofan-engines)
- Dec 27, 2001: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period., FR document 01-31557, comments due Jan 28, 2002 (https://www.federalregister.gov/documents/2001/12/27/01-31557/airworthiness-directives-pratt-and-whitney-pw-pw2000-series-turbofan-engines)
- Aug 18, 2004: Notice of proposed rulemaking (NPRM)., FR document 04-18919, comments due Oct 18, 2004 (https://www.federalregister.gov/documents/2004/08/18/04-18919/airworthiness-directives-pratt-and-whitney-pw2000-series-turbofan-engines)

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