# Airworthiness Directives; International Aero Engines, LLC Engines
> **Rule** · Final rule; request for comments. · Published 2023-08-22 · Effective 2023-08-28 · 88 FR 56999
## Document
- **Document number:** 2023-18114
- **Category:** airworthiness
- **Manufacturer:** International Aero
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 88 FR 56999
- **Publication date:** 2023-08-22
- **Effective date:** 2023-08-28
- **FAA docket:** Docket No. FAA-2023-1714
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain International Aero Engines, LLC (IAE LLC) Model PW1122G-JM, PW1124G1-JM, PW1124G-JM, PW1127G-JM, PW1127G1-JM, PW1127GA-JM, PW1129G- JM, PW1130G-JM, PW1133G-JM, PW1133GA-JM, PW1428G-JM, PW1428GA-JM, PW1428GH-JM, PW1431G-JM, PW1431GA-JM, and PW1431GH-JM engines. This AD was prompted by an updated analysis of an event involving an IAE LLC Model PW1127GA-JM engine, which experienced a high-pressure compressor (HPC) 7th-stage integrally bladed rotor (IBR-7) separation that resulted in an aborted takeoff. This AD requires performing an ultrasonic inspection (USI) of the high-pressure turbine (HPT) 1st- stage hub and HPT 2nd-stage hub for cracks and, depending on the results of the inspections, replacing the HPT 1st-stage hub or HPT 2nd- stage hub. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/08/22/2023-18114/airworthiness-directives-international-aero-engines-llc-engines)
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