# Airworthiness Directives; Airbus Airplanes
> **Rule** · Final rule. · Published 2014-09-12 · Effective 2014-10-17 · 79 FR 54579
## Document
- **Document number:** 2014-21552
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 79 FR 54579
- **Publication date:** 2014-09-12
- **Effective date:** 2014-10-17
- **FAA docket:** Docket No. FAA-2013-0088
## Abstract

We are superseding Airworthiness Directive (AD) 2007-18-09 for all Airbus Model A318, A319, A320, and A321 series airplanes. AD 2007- 18-09 required repetitive inspections of the upper support of the nose landing gear (NLG), and related investigative and corrective actions if necessary; and also provided an optional terminating action for the repetitive inspections. This new AD adds installation of a new enhanced manufacturing and maintainability (EMM) braking and steering control unit (BSCU) standard, and adds airplanes to the applicability. This AD was prompted by a determination that previously allowed terminating actions no longer address the unsafe condition and that a new terminating action is necessary. We are issuing this AD to prevent landings with the NLG turned 90 degrees from centerline, which could result in reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/09/12/2014-21552/airworthiness-directives-airbus-airplanes)
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