# Airworthiness Directives; The Boeing Company Model 767-200, -300, -300F, and -400ER Series Airplanes
> **Rule** · Final rule. · Published 2012-05-07 · Effective 2012-06-11 · 77 FR 26663
## Document
- **Document number:** 2012-10570
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 26663
- **Publication date:** 2012-05-07
- **Effective date:** 2012-06-11
- **FAA docket:** Docket No. FAA-2011-0044
## Abstract

We are superseding an existing airworthiness directive (AD) that applies to The Boeing Company Model 767-200, -300, and -300F series airplanes. That AD currently requires inspections to detect cracking or corrosion of the fail-safe straps between the side fitting of the rear spar bulkhead at body station 955 and the skin; and follow- on and corrective actions. This new AD expands the applicability; and adds an inspection for cracking in the fail-safe strap, and repair or replacement if necessary. This AD was prompted by additional reports of cracks in 51 fail-safe straps on 41 airplanes; we have also received a report of a crack found in the "T" fitting that connects the fail- safe strap to the outboard edge of the pressure deck. We are issuing this AD to detect and correct fatigue cracking or corrosion of the fail-safe straps and the "T" fittings, which could result in cracking of adjacent structure and consequent reduced structural integrity of the fuselage.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/05/07/2012-10570/airworthiness-directives-the-boeing-company-model-767-200--300--300f-and--400er-series-airplanes)
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