# Airworthiness Directives; International Aero Engines, LLC Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2021-09-10 · Effective 2021-09-27 · 86 FR 50610
## Document
- **Document number:** 2021-19600
- **Category:** airworthiness
- **Manufacturer:** International Aero
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 86 FR 50610
- **Publication date:** 2021-09-10
- **Effective date:** 2021-09-27
- **FAA docket:** Docket No. FAA-2021-0780
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain International Aero Engines, LLC (IAE) PW1122G-JM, PW1124G1-JM, PW1124G-JM, PW1127G1-JM, PW1127GA-JM, PW1127G-JM, PW1129G-JM, PW1130G- JM, PW1133GA-JM, and PW1133G-JM model turbofan engines. This AD was prompted by a root cause analysis of an event involving an uncontained failure of a high-pressure turbine (HPT) disk that resulted in high- energy debris penetrating the engine cowling on an Airbus Model A321- 231 airplane, powered by IAE V2533-A5 model turbofan engines. This AD requires removing certain HPT 1st-stage and HPT 2nd-stage disks from service. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/09/10/2021-19600/airworthiness-directives-international-aero-engines-llc-turbofan-engines)
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