# Proposed AD FAA-2018-0412: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-19-20
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 15, 2018, 83 FR 22422
- Comments due: June 29, 2018
- Became: [AD 2018-19-20](https://openairdocs.org/ad/2018-19-20)
- Docket: FAA-2018-0412 (https://www.regulations.gov/docket/FAA-2018-0412, where comments are filed)
- FR document: 2018-10299
- Official PDF: https://openairdocs.org/files/sha256/ea/79/ea79ff213557ddd326c3f0feb64d85d16dd67180a4b6aeb5f2a91aaf4da88566 (from https://www.govinfo.gov/content/pkg/FR-2018-05-15/pdf/2018-10299.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/05/15/2018-10299/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D451790A49D5B93A8625828E005484F5.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0412

## Summary

We propose to supersede Airworthiness Directive (AD) 2010-25- 06, which applies to certain The Boeing Company Model 737-200, -300, - 400, and -500 series airplanes. AD 2010-25-06 requires repetitive inspections for cracking of certain fuselage frames and stub beams, and corrective actions if necessary. AD 2010-25-06 also provides for an optional repair, which terminates the repetitive inspections. For airplanes on which a certain repair is done, AD 2010-25-06 also requires repetitive inspections for cracking of certain fuselage frames and stub beams, and corrective actions if necessary. Since we issued AD 2010-25-06, additional cracking was found in areas not covered by the inspections. This proposed AD would retain the actions required by AD 2010-25-06 and would expand the inspection area. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- May 15, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-10299, comments due Jun 29, 2018 (https://www.federalregister.gov/documents/2018/05/15/2018-10299/airworthiness-directives-the-boeing-company-airplanes)

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