# Airworthiness Directives; International Aero Engines AG Turbofan Engines
> **Rule** · Final rule. · Published 2013-04-15 · Effective 2013-05-20 · 78 FR 22168
## Document
- **Document number:** 2013-08448
- **Category:** airworthiness
- **Manufacturer:** International Aero
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 78 FR 22168
- **Publication date:** 2013-04-15
- **Effective date:** 2013-05-20
- **FAA docket:** Docket No. FAA-2012-1217
## Abstract

We are adopting a new airworthiness directive (AD) for certain International Aero Engines AG (IAE), V2525-D5 and V2528-D5 turbofan engines, with a certain No. 4 bearing internal scavenge tube and a certain No. 4 bearing external scavenge tube installed. This AD was prompted by a report of an engine under-cowl fire and commanded in- flight shutdown. This AD would require replacement of certain part number (P/N) No. 4 bearing internal scavenge tubes, and alignment checks of certain P/N No. 4 bearing external scavenge tubes. We are issuing this AD to prevent engine fire and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/04/15/2013-08448/airworthiness-directives-international-aero-engines-ag-turbofan-engines)
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