# Airworthiness Directives; International Aero Engines AG Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2021-07-21 · Effective 2021-08-05 · 86 FR 38410
## Document
- **Document number:** 2021-15486
- **Category:** airworthiness
- **Manufacturer:** International Aero
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 86 FR 38410
- **Publication date:** 2021-07-21
- **Effective date:** 2021-08-05
- **FAA docket:** Docket No. FAA-2021-0544
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain International Aero Engines AG (IAE) V2500 model turbofan engines. This AD was prompted by a review of investigative findings from an event involving an uncontained failure of a high-pressure turbine (HPT) 1st-stage disk that resulted in high-energy debris penetrating the engine cowling. This AD requires performance of an ultrasonic inspection (USI) of the HPT 1st-stage disk and HPT 2nd-stage disk and, depending on the results of the inspections, replacement of the HPT 1st-stage disk or HPT 2nd-stage disk with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/07/21/2021-15486/airworthiness-directives-international-aero-engines-ag-turbofan-engines)
---
*AI Analytics · CC0 1.0*