# Airworthiness Directives; Airbus Model A310-324, A310-325, and A300 B4-622R Series Airplanes Equipped with Pratt & Whitney PW4000 Series Engines
> **Rule** · Final rule; request for comments. · Published 2001-05-07 · Effective 2001-05-22 · 66 FR 22908
## Document
- **Document number:** 01-10591
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 66 FR 22908
- **Publication date:** 2001-05-07
- **Effective date:** 2001-05-22
- **FAA docket:** Docket No. 2001-NM-68-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to certain Airbus Model A310-324, A310-325, and A300 B4- 622R series airplanes equipped with Pratt & Whitney PW4000 series engines. This action requires revising the Airplane Flight Manuals (AFM) for the Model A310 and Model A300-600 series airplanes. This action is necessary to prevent acceleration and climb performance less than that specified in the AFM, which could result in runway overruns or impact with obstacles or terrain. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/05/07/01-10591/airworthiness-directives-airbus-model-a310-324-a310-325-and-a300-b4-622r-series-airplanes-equipped)
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