# Proposed AD FAA-2007-0395: Boeing Model 737-300 and -400 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-13-25
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 10, 2008, 73 FR 1846
- Comments due: February 25, 2008
- Became: [AD 2008-13-25](https://openairdocs.org/ad/2008-13-25)
- Docket: FAA-2007-0395 (https://www.regulations.gov/docket/FAA-2007-0395, where comments are filed)
- Project: 2007-NM-157-AD
- FR document: E8-251
- Official PDF: https://openairdocs.org/files/sha256/b3/a2/b3a29815e76bfc8cea01bcaec7874e63df7efb5b99899d0edc2a8f37c4539781 (from https://www.govinfo.gov/content/pkg/FR-2008-01-10/pdf/E8-251.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/01/10/E8-251/airworthiness-directives-boeing-model-737-300-and--400-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/585E1026C376F584862573CC0057B4BA.0001
- Page: https://openairdocs.org/proposed/FAA-2007-0395

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 737-300 and -400 series airplanes. This proposed AD would require testing and inspecting a certain web panel of the main wheel well pressure deck to determine the material type and thickness; and related investigative and corrective actions if necessary. This proposed AD results from several reports indicating that cracks ranging from 0.8 to 8.0 inches long were found on a certain web panel of the main wheel well pressure deck. We are proposing this AD to prevent fatigue cracking in the web panel of the main wheel well pressure deck, which could result in venting and consequent rapid decompression of the airplane.

## Notices in this docket

- Jan 10, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-251, comments due Feb 25, 2008 (https://www.federalregister.gov/documents/2008/01/10/E8-251/airworthiness-directives-boeing-model-737-300-and--400-series-airplanes)

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