# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2012-08-07 · Effective 2012-09-11 · 77 FR 46932
## Document
- **Document number:** 2012-18578
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 46932
- **Publication date:** 2012-08-07
- **Effective date:** 2012-09-11
- **FAA docket:** Docket No. FAA-2011-1322
## Abstract

We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 767 airplanes. This AD was prompted by reports of cracks of the underwing longeron fittings in the wing center section. This AD requires repetitive inspections of the underwing longeron fitting for cracking, and related investigative and corrective actions if necessary. We are issuing this AD to detect and correct such cracking, which could result in loss of the primary load path between the fuselage and the wing box, and consequent catastrophic damage to the wing box and failure of the wing.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/08/07/2012-18578/airworthiness-directives-the-boeing-company-airplanes)
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