# Airworthiness Directives; International Aero Engines Turbofan Engines
> **Rule** · Final rule. · Published 2019-02-08 · Effective 2019-03-15 · 84 FR 2715
## Document
- **Document number:** 2019-01127
- **Category:** airworthiness
- **Manufacturer:** International Aero
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 84 FR 2715
- **Publication date:** 2019-02-08
- **Effective date:** 2019-03-15
- **FAA docket:** Docket No. FAA-2018-0735
## Abstract

We are adopting a new airworthiness directive (AD) for certain International Aero Engines (IAE) PW1100G-JM turbofan engine models with certain low-pressure turbine (LPT) 1st- and 3rd-stage disks installed. This AD was prompted by a report of manufacturing defects found on delivered LPT 1st- and 3rd-stage disks. This AD requires removing the LPT 1st- or 3rd-stage disk from service and replacing with a part eligible for installation. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/02/08/2019-01127/airworthiness-directives-international-aero-engines-turbofan-engines)
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