# Airworthiness Directives; Boeing Model 737-100, -200, -200C, -300, -400, and -500 Series Airplanes
> **Rule** · Final rule. · Published 2008-10-01 · Effective 2008-11-05 · 73 FR 56956
## Document
- **Document number:** E8-22649
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 73 FR 56956
- **Publication date:** 2008-10-01
- **Effective date:** 2008-11-05
- **FAA docket:** Docket No. FAA-2008-0149
## Abstract

We are adopting a new airworthiness directive (AD) for certain Boeing Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This AD requires replacing the existing straight-to-90- degree hose assembly for the Lavatory "A" water supply. The replacement is a new straight hose assembly and a separate 90-degree elbow fitting. This AD results from a report of a separated hose assembly for the passenger water system. We are issuing this AD to prevent a water leak into the flight deck ceiling, which could result in an electrical short and possible loss of several functions essential to safe flight.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/10/01/E8-22649/airworthiness-directives-boeing-model-737-100--200--200c--300--400-and--500-series-airplanes)
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