# Proposed AD FAA-2018-0431: International Aero Engines (IAE) Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-22-02
- Products: International Aero Engines
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 28, 2018, 83 FR 30370
- Comments due: August 13, 2018
- Became: [AD 2018-22-02](https://openairdocs.org/ad/2018-22-02)
- Docket: FAA-2018-0431 (https://www.regulations.gov/docket/FAA-2018-0431, where comments are filed)
- FR document: 2018-13795
- Official PDF: https://openairdocs.org/files/sha256/d8/c7/d8c7200e14b6b9febe58e2dbac041499e3d681ce460b7b737914914893fdc7a2 (from https://www.govinfo.gov/content/pkg/FR-2018-06-28/pdf/2018-13795.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/06/28/2018-13795/airworthiness-directives-international-aero-engines-iae-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CA9160318EB6C272862582BA004FAB73.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0431

## Summary

We propose to adopt a new airworthiness directive (AD) for certain International Aero Engines (IAE) PW1133G-JM, PW1133GA-JM, PW1130G-JM, PW1127G-JM, PW1127GA-JM, PW1127G1-JM, PW1124G-JM, PW1124G1- JM, and PW1122G-JM turbofan engines with a certain high-pressure compressor (HPC) front hub installed. This proposed AD was prompted by corrosion found on the HPC front hub. This proposed AD would require replacing the HPC front hub with a part eligible for installation. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jun 28, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-13795, comments due Aug 13, 2018 (https://www.federalregister.gov/documents/2018/06/28/2018-13795/airworthiness-directives-international-aero-engines-iae-turbofan-engines)

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