# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule; request for comments. · Published 2016-02-23 · Effective 2016-03-09 · 81 FR 8823
## Document
- **Document number:** 2016-03562
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 81 FR 8823
- **Publication date:** 2016-02-23
- **Effective date:** 2016-03-09
- **FAA docket:** Docket No. FAA-2016-3699
## Abstract

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8 airplanes. This AD requires revising the maintenance or inspection program, as applicable, to include an airworthiness limitation for repetitive inspections of the web fastener holes in the overwing flex-tees. This AD was prompted by a report that certain web fastener holes in the overwing flex-tees at the wing-to- body interface might not have been deburred properly when manufactured. Fastener holes without the deburr chamfer applied can develop fatigue cracking. We are issuing this AD to detect and correct cracking in the web fastener holes in the overwing flex-tees, which can weaken the primary wing structure so it cannot sustain limit load.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/02/23/2016-03562/airworthiness-directives-the-boeing-company-airplanes)
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