# Airworthiness Directives; Airbus Airplanes
> **Rule** · Final rule. · Published 2017-08-01 · Effective 2017-09-05 · 82 FR 35644
## Document
- **Document number:** 2017-15808
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 35644
- **Publication date:** 2017-08-01
- **Effective date:** 2017-09-05
- **FAA docket:** Docket No. FAA-2016-9055
## Abstract

We are adopting a new airworthiness directive (AD) for certain Airbus Model A300 B4-600R series airplanes, Model A300 C4-605R Variant F airplanes, and Model A300 F4-600R series airplanes. This AD was prompted by the results of a full stress analysis of the lower area of a certain frame that revealed that a crack could occur in this area after a certain number of flight cycles. This AD requires an inspection of the lower area of a certain frame radius for cracking, and corrective action if necessary. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/08/01/2017-15808/airworthiness-directives-airbus-airplanes)
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