# Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes)
> **Rule** · Final rule; correction. · Published 2006-04-21 · Effective 2006-04-17 · 71 FR 20530
## Document
- **Document number:** 06-3797
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; correction.
- **Citation:** 71 FR 20530
- **Publication date:** 2006-04-21
- **Effective date:** 2006-04-17
- **FAA docket:** Docket No. FAA-2006-24364
## Abstract

The FAA is correcting a typographical error in an existing airworthiness directive (AD) that was published in the Federal Register on March 31, 2006 (71 FR 16206). The error resulted in an incorrect Docket No. This AD applies to certain Airbus Model A300-600 series airplanes. This AD requires modifying nine bolt holes in the vertical flange to prevent cracking before the inspection threshold of AD 98-18- 02.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/04/21/06-3797/airworthiness-directives-airbus-model-a300-b4-600-b4-600r-and-f4-600r-series-airplanes-and-model)
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