# Proposed AD FAA-2017-0903: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-06-05
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 6, 2017, 82 FR 46725
- Comments due: November 20, 2017
- Became: [AD 2018-06-05](https://openairdocs.org/ad/2018-06-05)
- Docket: FAA-2017-0903 (https://www.regulations.gov/docket/FAA-2017-0903, where comments are filed)
- FR document: 2017-21225
- Official PDF: https://openairdocs.org/files/sha256/d1/0b/d10bf75597ba41371549230d5cba8f316fe1cb5e47cbe46cdec2cf4925c89b60 (from https://www.govinfo.gov/content/pkg/FR-2017-10-06/pdf/2017-21225.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/10/06/2017-21225/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9EC137810759E842862581B1004F9A06.0001
- Page: https://openairdocs.org/proposed/FAA-2017-0903

## Summary

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-300 and -500 series airplanes. This proposed AD was prompted by a report indicating that fatigue cracks were found in the lower wing skin of an airplane with winglets installed. This proposed AD would require repetitive inspections for cracking of the lower wing skin, and repair if necessary. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 6, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-21225, comments due Nov 20, 2017 (https://www.federalregister.gov/documents/2017/10/06/2017-21225/airworthiness-directives-the-boeing-company-airplanes)

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