# Airworthiness Directives; Airbus Airplanes
> **Rule** · Final rule. · Published 2016-01-13 · Effective 2016-02-17 · 81 FR 1486
## Document
- **Document number:** 2016-00014
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 81 FR 1486
- **Publication date:** 2016-01-13
- **Effective date:** 2016-02-17
- **FAA docket:** Docket No. FAA-2015-0678
## Abstract

We are superseding Airworthiness Directive (AD) 2013-13-04, for certain Airbus Model A318, A319, A320, and A321 series airplanes. AD 2013-13-04 required installing a power interruption protection circuit for the landing gear control interface unit (LGCIU). This new AD requires a new modification of any previously modified LGCIU. This new AD also requires revising the maintenance or inspection program to reduce a certain functional check interval. This new AD also adds airplanes to the applicability. This AD was prompted by a determination that additional work is necessary to adequately address the identified unsafe condition. We are issuing this AD to prevent untimely unlocking and/or retraction of the nose landing gear (NLG), which, while on the ground, could result in injury to ground personnel and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/01/13/2016-00014/airworthiness-directives-airbus-airplanes)
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