# Airworthiness Directives; Airbus Airplanes
> **Rule** · Final rule; request for comments. · Published 2018-05-30 · Effective 2018-05-30 · 83 FR 24654
## Document
- **Document number:** 2018-11659
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 83 FR 24654
- **Publication date:** 2018-05-30
- **Effective date:** 2018-05-30
- **FAA docket:** Docket No. FAA-2018-0492
## Abstract

We are adopting a new airworthiness directive (AD) for all Airbus Model A320-271N airplanes, and Model A321-271N, -271NX, -272N and -272NX airplanes. This AD requires replacing certain full authority digital engine control (FADEC) electronic engine controllers (EECs); or installing software standard FCS4.4 and re-identifying the FADEC EECs. This AD was prompted by a report that, when operated at low speed and high engine thrust, an engine did not restart following a fuel interruption shorter than five seconds. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/05/30/2018-11659/airworthiness-directives-airbus-airplanes)
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