# Proposed AD FAA-2013-0397: Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2013-23-01
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 13, 2013, 78 FR 35574
- Comments due: August 12, 2013
- Became: [AD 2013-23-01](https://openairdocs.org/ad/2013-23-01)
- Docket: FAA-2013-0397 (https://www.regulations.gov/docket/FAA-2013-0397, where comments are filed)
- Project: 2013-NE-15-AD
- FR document: 2013-14034
- Official PDF: https://openairdocs.org/files/sha256/d1/97/d197c00dcadf7404c1d49ed3ce876bf5b8a4e1efa39514d38b7c1d853723bd7c (from https://www.govinfo.gov/content/pkg/FR-2013-06-13/pdf/2013-14034.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/06/13/2013-14034/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/76A1839A787B286186257B8900464601.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0397

## Summary

We propose to adopt a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) model Tay 650-15 turbofan engines. This proposed AD was prompted by excessive deterioration of the high-pressure (HP) air bleed valve operating mechanism. This proposed AD would require a one-time inspection of the HP air bleed valve operating mechanism and, depending on findings, corrective action. We are proposing this AD to prevent multiple fan blade failure, which could result in uncontained engine failure and damage to the airplane.

## Notices in this docket

- Jun 13, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-14034, comments due Aug 12, 2013 (https://www.federalregister.gov/documents/2013/06/13/2013-14034/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-turbofan-engines)

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