Business · 24/03/2011Updated: 10/17/2026 · 1 min read

The Boeing Company Proposes New Airworthiness Directive for 737-600, -700, -700C, -800, -900, and -900ER Series Airplanes

Summary

The Boeing Company is proposing a new airworthiness directive to address a design change in the cabin altitude warning system, which could prevent flightcrew incapacitation due to hypoxia and loss of airplane control.

Original source language: Federal Register — Transportation DepartmentOpen original release →

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