# Proposed AD FAA-2020-0844: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-26-09
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 22, 2020, 85 FR 59449
- Comments due: November 6, 2020
- Became: [AD 2020-26-09](https://openairdocs.org/ad/2020-26-09)
- Docket: FAA-2020-0844 (https://www.regulations.gov/docket/FAA-2020-0844, where comments are filed)
- FR document: 2020-20657
- Official PDF: https://openairdocs.org/files/sha256/9b/8b/9b8b3771ca6bedb23d089ff9d775a84bcc70c074cf6ad866433cc7aeb9c50733 (from https://www.govinfo.gov/content/pkg/FR-2020-09-22/pdf/2020-20657.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/09/22/2020-20657/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7113A4DA39F5E17A862585EB0047B315.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0844

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This proposed AD was prompted by a report of cracks found in fastener holes at a certain station of the center wing box. This proposed AD would require repetitive external surface high frequency eddy current inspections (HFEC) and repetitive external surface ultrasonic inspections; or repetitive internal detailed inspections; of a certain station of the center wing box for any cracking, and repair if necessary. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 22, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-20657, comments due Nov 6, 2020 (https://www.federalregister.gov/documents/2020/09/22/2020-20657/airworthiness-directives-the-boeing-company-airplanes)

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