# Airworthiness Directives; International Aero Engines AG Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2019-03-28 · Effective 2019-04-12 · 84 FR 11642
## Document
- **Document number:** 2019-05885
- **Category:** airworthiness
- **Manufacturer:** International Aero
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 84 FR 11642
- **Publication date:** 2019-03-28
- **Effective date:** 2019-04-12
- **FAA docket:** Docket No. FAA-2019-0151
## Abstract

We are adopting a new airworthiness directive (AD) for all International Aero Engines AG (IAE) V2500 turbofan engine models. This AD requires initial and repetitive borescope inspections (BSIs) of the diffuser case M-flange and, if it fails the inspection, replacement of the diffuser case with a part eligible for installation. This AD was prompted by a crack found at the diffuser case M-flange during overhaul inspection. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/03/28/2019-05885/airworthiness-directives-international-aero-engines-ag-turbofan-engines)
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