# Proposed AD FAA-2004-19022: Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-05-18
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 7, 2004, 69 FR 54053
- Comments due: October 22, 2004
- Became: [AD 2005-05-18](https://openairdocs.org/ad/2005-05-18)
- Docket: FAA-2004-19022 (https://www.regulations.gov/docket/FAA-2004-19022, where comments are filed)
- Project: 2004-NM-122-AD
- FR document: 04-20212
- Official PDF: https://openairdocs.org/files/sha256/2a/54/2a541027dc2c349ba14885d619a68d58119a32ea0c173b97b40739b72418576f (from https://www.govinfo.gov/content/pkg/FR-2004-09-07/pdf/04-20212.pdf)
- Federal Register: https://www.federalregister.gov/documents/2004/09/07/04-20212/airworthiness-directives-boeing-model-737-600--700--700c--800-and--900-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ABBFB8E46BD976BE86256F08004F474E.0001
- Page: https://openairdocs.org/proposed/FAA-2004-19022

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 737-600, -700, -700C, -800, and -900 series airplanes. This proposed AD would require repetitive detailed, low frequency eddy current, and high frequency eddy current inspections of the webs of the aft pressure bulkhead at body station 1016 for cracks, and corrective action if necessary. This proposed AD is prompted by a report of cracks found, during fatigue testing, at several of the fastener rows in the web lap splices at the dome apex of the aft pressure bulkhead. We are proposing this AD to detect and correct fatigue cracks in the webs of the aft pressure bulkhead, which could result in rapid decompression of the airplane.

## Notices in this docket

- Sep 7, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-20212, comments due Oct 22, 2004 (https://www.federalregister.gov/documents/2004/09/07/04-20212/airworthiness-directives-boeing-model-737-600--700--700c--800-and--900-series-airplanes)

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