# Airworthiness Directives; Pratt & Whitney Canada Corp. Engines
> **Rule** · Final rule. · Published 2023-07-25 · Effective 2023-08-29 · 88 FR 47756
## Document
- **Document number:** 2023-15634
- **Category:** airworthiness
- **Manufacturer:** Pratt & Whitney Canada Corp.
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 47756
- **Publication date:** 2023-07-25
- **Effective date:** 2023-08-29
- **FAA docket:** Docket No. FAA-2023-0939
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Pratt & Whitney Canada Corp. (P&WC) Model PW307D engines. This AD is prompted by a root cause analysis of an event involving an uncontained failure of a high-pressure turbine (HPT) 1st-stage disk, on an International Aero Engines AG (IAE) Model V2533-A5 engine, that resulted in high-energy debris penetrating the engine cowling and an aborted takeoff. This AD requires removing certain HPT 2nd-stage disks from service and also prohibits installation of certain HPT 2nd-stage disks on any affected engine. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/07/25/2023-15634/airworthiness-directives-pratt-and-whitney-canada-corp-engines)
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