# Proposed AD FAA-2017-1050: Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-18-14
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 12, 2018, 83 FR 5963
- Comments due: March 29, 2018
- Became: [AD 2018-18-14](https://openairdocs.org/ad/2018-18-14)
- Docket: FAA-2017-1050 (https://www.regulations.gov/docket/FAA-2017-1050, where comments are filed)
- FR document: 2018-02600
- Official PDF: https://openairdocs.org/files/sha256/f9/18/f9181fddd2f924969e9ac8ce727f69cc014489c644e78e8297e17bd33eb18312 (from https://www.govinfo.gov/content/pkg/FR-2018-02-12/pdf/2018-02600.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/02/12/2018-02600/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/04815416505AE76A862582320059936B.0001
- Page: https://openairdocs.org/proposed/FAA-2017-1050

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) BR700-710A2-20 and BR700-710C4-11 turbofan engines. This proposed AD was prompted by reports of deterioration of the intumescent heat resistant paint system on the electronic engine controller (EEC) firebox assembly that was found to be beyond acceptable limits. This proposed AD would require replacement of affected EEC firebox assembly parts with improved parts, which have a more durable paint system. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Feb 12, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-02600, comments due Mar 29, 2018 (https://www.federalregister.gov/documents/2018/02/12/2018-02600/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-turbofan-engines)

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