# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2016-10-11 · Effective 2016-11-15 · 81 FR 70011
## Document
- **Document number:** 2016-24197
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 81 FR 70011
- **Publication date:** 2016-10-11
- **Effective date:** 2016-11-15
- **FAA docket:** Docket No. FAA-2016-5042
## Abstract

We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-600, -700, -700C, -800, -900 and -900ER series airplanes. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that certain fastener locations in the window corner surround structure are subject to widespread fatigue damage (WFD). This AD requires repetitive high frequency eddy current (HFEC) inspections for cracking in certain fastener locations in the window corner surround structure, and repair if necessary. We are issuing this AD to detect and correct fatigue cracking around certain fastener locations that could cause multiple window corner skin cracks, which could result in rapid decompression and consequent loss of structural integrity of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/10/11/2016-24197/airworthiness-directives-the-boeing-company-airplanes)
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