Boeing Proposes New Airworthiness Directive for 737-300 to 800 Series Airplanes

Summary

The Boeing Company is proposing a new airworthiness directive for certain Model 737-300, -400, -500, -600, -700, and -800 series airplanes to inspect and replace low-pressure flex-hoses of the crew oxygen system due to reports of them burning through due to electrical current from a short circuit in the audio select panel. This measure aims to prevent oxygen system leakage and smoke or fire.