# Airworthiness Directives; Boeing Model 737-600, 737-700, 737-700C, 737-800, 737-900, 757, and 767 Series Airplanes
> **Rule** · Final rule. · Published 2003-07-14 · Effective 2003-08-18 · 68 FR 41519
## Document
- **Document number:** 03-17675
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 68 FR 41519
- **Publication date:** 2003-07-14
- **Effective date:** 2003-08-18
- **FAA docket:** Docket No. 2002-NM-282-AD
## Abstract

This amendment adopts a new airworthiness directive (AD); applicable to all Boeing Model 737-600, 737-700, 737-700C, 737-800, 737-900, 757, and 767 series airplanes; that requires revising the Airplane Flight Manual (AFM) to advise the flightcrew to don oxygen masks as a first and immediate step when a cabin altitude warning occurs. This action is necessary to prevent incapacitation of the flightcrew due to lack of oxygen, which could result in loss of control of the airplane. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/07/14/03-17675/airworthiness-directives-boeing-model-737-600-737-700-737-700c-737-800-737-900-757-and-767-series)
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