# Proposed AD FAA-2018-0793: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2019-01-06
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 17, 2018, 83 FR 46902
- Comments due: November 1, 2018
- Became: [AD 2019-01-06](https://openairdocs.org/ad/2019-01-06)
- Docket: FAA-2018-0793 (https://www.regulations.gov/docket/FAA-2018-0793, where comments are filed)
- FR document: 2018-19840
- Official PDF: https://openairdocs.org/files/sha256/25/3f/253f7e5d802deca39eaa972c11440a3a686dfb46f82890a2a72157ac893b8fc3 (from https://www.govinfo.gov/content/pkg/FR-2018-09-17/pdf/2018-19840.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/09/17/2018-19840/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/27B8738D09B1DDD68625830B00493D46.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0793

## Summary

We propose 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 in the body station (STA) 303.9 frame web and doubler at fastener holes common to the stop fitting at stringer 16 left (S-16L). This proposed AD would require repetitive surface high frequency eddy current (HFEC) inspections for cracking of the STA 303.9 frame web and doubler at the stop fitting at S-16L, and applicable on-condition actions. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 17, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-19840, comments due Nov 1, 2018 (https://www.federalregister.gov/documents/2018/09/17/2018-19840/airworthiness-directives-the-boeing-company-airplanes)

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