# Proposed AD FAA-2018-0611: Rolls-Royce plc Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2019-07-09
- Products: Rolls-Royce
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 9, 2018, 83 FR 39380
- Comments due: September 24, 2018
- Became: [AD 2019-07-09](https://openairdocs.org/ad/2019-07-09)
- Docket: FAA-2018-0611 (https://www.regulations.gov/docket/FAA-2018-0611, where comments are filed)
- FR document: 2018-16649
- Official PDF: https://openairdocs.org/files/sha256/84/44/8444b166093349f51ddc54ae28f704aa2d62676f387fc7d3441f98ad7a867176 (from https://www.govinfo.gov/content/pkg/FR-2018-08-09/pdf/2018-16649.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/08/09/2018-16649/airworthiness-directives-rolls-royce-plc-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2AEEBA9CD8941B76862582E4004EC558.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0611

## Summary

We propose to adopt a new airworthiness directive (AD) for all Rolls-Royce plc (RR) Trent 1000-A2, Trent 1000-C2, Trent 1000-D2, Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000-J2, Trent 1000-K2, and Trent 1000-L2 turbofan engine models. This proposed AD was prompted by reports of intermediate-pressure compressor (IPC) rotor seal failures. This proposed AD would require initial and repetitive on-wing borescope inspections (BSI) of affected IPC rotor seals, and removing any cracked parts from service. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 9, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-16649, comments due Sep 24, 2018 (https://www.federalregister.gov/documents/2018/08/09/2018-16649/airworthiness-directives-rolls-royce-plc-turbofan-engines)

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