# Airworthiness Directives; Airbus Model A321-100 and -200 Series Airplanes
> **Rule** · Final rule. · Published 2005-07-05 · Effective 2005-08-09 · 70 FR 38580
## Document
- **Document number:** 05-12843
- **Category:** airworthiness
- **Manufacturer:** Airbus Model A321-100 and -200 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 70 FR 38580
- **Publication date:** 2005-07-05
- **Effective date:** 2005-08-09
- **FAA docket:** Docket No. FAA-2005-20755
## Abstract

The FAA is superseding an existing airworthiness directive (AD), which applies to Airbus Model A321 series airplanes. That AD currently requires revising the Limitations section of the airplane flight manual to include an instruction to use Flap 3 for landing when performing an approach in conditions of moderate to severe icing, significant crosswind (i.e., crosswinds greater than 20 knots, gust included), or moderate to severe turbulence. This new AD requires replacing existing elevator and aileron computers (ELACs) with ELACs having either L83 or L91 software, as applicable, which terminates the requirements of the existing AD. This AD also requires a related concurrent action. In addition, this AD revises the applicability by removing airplanes with these ELAC software standards incorporated in production. This AD is prompted by issuance of mandatory continuing airworthiness information by a civil airworthiness authority. We are issuing this AD to prevent roll oscillations during approach and landing in certain icing, crosswind, and turbulent conditions, which could result in reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/07/05/05-12843/airworthiness-directives-airbus-model-a321-100-and--200-series-airplanes)
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