# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2020-06-23 · Effective 2020-07-28 · 85 FR 37547
## Document
- **Document number:** 2020-13407
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 85 FR 37547
- **Publication date:** 2020-06-23
- **Effective date:** 2020-07-28
- **FAA docket:** Docket No. FAA-2019-0990
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes. This AD was prompted by reports of cracks of the upper splice fittings. This AD requires repetitive detailed inspections and open hole high frequency eddy current (HFEC) inspections of the upper splice fittings for cracks 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/2020/06/23/2020-13407/airworthiness-directives-the-boeing-company-airplanes)
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