# Proposed AD FAA-2016-7099: International Aero Engines AG Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2016-25-11
- Products: International Aero Engines
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 21, 2016, 81 FR 47313
- Comments due: September 19, 2016
- Became: [AD 2016-25-11](https://openairdocs.org/ad/2016-25-11)
- Docket: FAA-2016-7099 (https://www.regulations.gov/docket/FAA-2016-7099, where comments are filed)
- Project: 2016-NE-15-AD
- FR document: 2016-17159
- Official PDF: https://openairdocs.org/files/sha256/ea/00/ea00aca04d3c423bdbb165b49f59dc06d1e7f4aeb6a4812772ff8dcbad9c6e4e (from https://www.govinfo.gov/content/pkg/FR-2016-07-21/pdf/2016-17159.pdf)
- Federal Register: https://www.federalregister.gov/documents/2016/07/21/2016-17159/airworthiness-directives-international-aero-engines-ag-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/04C7270BEF3E9DC486257FF70048562B.0001
- Page: https://openairdocs.org/proposed/FAA-2016-7099

## Summary

We propose to adopt a new airworthiness directive (AD) for certain International Aero Engines AG (IAE) V2522-A5, V2524-A5, V2527- A5, V2527E-A5, V2527M-A5, V2530-A5, V2533-A5, V2525-D5, V2528-D5, and V2531-E5 turbofan engines. This proposed AD was prompted by nine in- flight shutdowns that resulted from premature failure of the No. 3 bearing. This proposed AD would require initial and repetitive inspections of the master magnetic chip detector (MMCD) and, if metallic debris is found, further actions depending on the type of metallic debris. This proposed AD would also require removal of the No. 3 bearing from service at the next engine shop visit. We are proposing this AD to prevent failure of the No. 3 bearing, failure of one or more engines, loss of thrust control, and loss of the airplane.

## Notices in this docket

- Jul 21, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-17159, comments due Sep 19, 2016 (https://www.federalregister.gov/documents/2016/07/21/2016-17159/airworthiness-directives-international-aero-engines-ag-turbofan-engines)

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