# Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes
> **Rule** · Final rule. · Published 2005-10-21 · Effective 2005-11-25 · 70 FR 61226
## Document
- **Document number:** 05-20966
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 70 FR 61226
- **Publication date:** 2005-10-21
- **Effective date:** 2005-11-25
- **FAA docket:** Docket No. FAA-2005-21086
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 737-600, -700, -700C, -800, and -900 series airplanes. This AD requires repetitive inspections of the aft pressure bulkhead web for fatigue cracks, crack indications, discrepant holes, and corrosion; and repair if necessary. This AD results from reports of fatigue cracks in the aft pressure bulkhead web. We are issuing this AD to detect and correct such fatigue cracks, which could result in a rapid decompression of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/10/21/05-20966/airworthiness-directives-boeing-model-737-600--700--700c--800-and--900-series-airplanes)
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