# Airworthiness Directives; Aerospatiale Model ATR42 Airplanes
> **Rule** · Final rule. · Published 2006-04-11 · Effective 2006-05-16 · 71 FR 18205
## Document
- **Document number:** 06-3382
- **Category:** airworthiness
- **Manufacturer:** Aerospatiale Model ATR42
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 71 FR 18205
- **Publication date:** 2006-04-11
- **Effective date:** 2006-05-16
- **FAA docket:** Docket No. FAA-2006-23816
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Aerospatiale Model ATR42 airplanes. This AD requires one-time inspections to detect discrepancies (e.g., cracking, loose/sheared fasteners, distortion) of the upper skin and rib feet of the outer wing boxes, and repair if necessary. This AD results from a report of cracking on the upper skin and ribs of the outer wing box on an in- service airplane. We are issuing this AD to detect and correct these discrepancies, which could result in reduced structural integrity of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/04/11/06-3382/airworthiness-directives-aerospatiale-model-atr42-airplanes)
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