# Proposed AD 2003-NE-03-AD: Rolls-Royce plc RB211 Trent 800 Series Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2003-15-06
- Products: Rolls-Royce
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 11, 2003, 68 FR 11479
- Comments due: May 12, 2003
- Became: [AD 2003-15-06](https://openairdocs.org/ad/2003-15-06)
- Docket: 2003-NE-03-AD
- FR document: 03-5691
- Official PDF: https://openairdocs.org/files/sha256/ae/15/ae1580e2a6a6729e48644a4f984457d39c43ea05255b5f42ecdd4edb37f8ee86 (from https://www.govinfo.gov/content/pkg/FR-2003-03-11/pdf/03-5691.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/03/11/03-5691/airworthiness-directives-rolls-royce-plc-rb211-trent-800-series-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7F2534C316103AA986256CE600524301.0001
- Page: https://openairdocs.org/proposed/2003-NE-03-AD

## Summary

The Federal Aviation Administration (FAA) proposes to adopt a new airworthiness directive (AD) that is applicable to Rolls-Royce plc (RR) RB211 Trent 875, Trent 877, Trent 884, Trent 892, Trent 892B, and Trent 895 turbofan engines with high pressure (HP) compressor rotor rear stage 5 and 6 discs and cone shafts, part numbers (P/Ns) FK25230 and FK27899 installed. This proposal would require removal from service of these HP compressor rotor rear stage 5 and 6 discs and cone shafts, before reaching newly reduced life limits. This proposal is prompted by three reports of crack indications in the stage 5 and stage 6 blade loading slots, found during engine overhaul. The actions specified by the proposed AD are intended to prevent crack initiation and propagation leading to uncontained disc failure and damage to the airplane.

## Notices in this docket

- Mar 11, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-5691, comments due May 12, 2003 (https://www.federalregister.gov/documents/2003/03/11/03-5691/airworthiness-directives-rolls-royce-plc-rb211-trent-800-series-turbofan-engines)

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