# Proposed AD 2000-NE-62-AD: Rolls-Royce plc RB211 Series Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-23-02
- Products: Rolls-Royce
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 30, 2006, 71 FR 4832
- Comments due: March 31, 2006
- Became: [AD 2001-23-02](https://openairdocs.org/ad/2001-23-02)
- Docket: 2000-NE-62-AD
- FR document: E6-1092
- Official PDF: https://openairdocs.org/files/sha256/34/75/3475a18592670bf2dec5a1a5b2f49dfe7a48989f70ddd1cba8eee994804c215c (from https://www.govinfo.gov/content/pkg/FR-2006-01-30/pdf/E6-1092.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/01/30/E6-1092/airworthiness-directives-rolls-royce-plc-rb211-series-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/00739C0F3180C7618625710600527C4A.0001
- Page: https://openairdocs.org/proposed/2000-NE-62-AD

## Summary

The FAA proposes to supersede an existing airworthiness directive (AD) for Rolls-Royce plc (RR) models RB211-535E4-37, RB211- 535E4-B-37, RB211-535C-37, RB211-535E4-B-75, RB211-535E4-C, and RB211- 22B-02 turbofan engines. That AD currently requires inspecting certain high pressure (HP) turbine discs, manufactured between 1989 and 1999, for cracks in the rim cooling air holes, and, if necessary, replacing the discs with serviceable parts. This proposed AD would require the same inspections, and would reduce the compliance times for eddy current inspection (ECI) for the RR RB211-22B-02 engines. This proposed AD results from the manufacturer reducing their recommended compliance times for inspections on RB211-22B-02 engines. We are proposing this AD to prevent possible disc failure, which could result in an uncontained engine failure and damage to the airplane.

## Notices in this docket

- Jul 26, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-18554, comments due Sep 24, 2001 (https://www.federalregister.gov/documents/2001/07/26/01-18554/airworthiness-directives-rolls-royce-plc-rb211-series-turbofan-engines)
- Jan 30, 2006: Notice of proposed rulemaking (NPRM)., FR document E6-1092, comments due Mar 31, 2006 (https://www.federalregister.gov/documents/2006/01/30/E6-1092/airworthiness-directives-rolls-royce-plc-rb211-series-turbofan-engines)

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