# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2019-12-30 · Effective 2020-02-03 · 84 FR 71776
## Document
- **Document number:** 2019-28066
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 84 FR 71776
- **Publication date:** 2019-12-30
- **Effective date:** 2020-02-03
- **FAA docket:** Docket No. FAA-2019-0487
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This AD was prompted by a report of a fuel leak resulting from a crack on the left in-spar upper wing skin. This AD requires repetitive surface high frequency eddy current (HFEC) inspections of the left and right upper wing skin for any crack, repetitive general visual inspections of the upper wing skin in the adjacent rib bay areas for any crack, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/12/30/2019-28066/airworthiness-directives-the-boeing-company-airplanes)
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