Posts: 199
Joined: Mon Jun 19, 2000 4:16 am

What Is That Noise On The 727-200

Mon Jun 19, 2000 4:29 am

what is that noise on the 727-200 you hear like ever 10 mins when your on the ground. It kinda sounds like water transfering from on place to another. does anyone know what it is
Posts: 130
Joined: Tue Nov 23, 1999 11:02 am

RE: What Is That Noise On The 727-200

Mon Jun 19, 2000 6:53 am

How about air. Pneumatics runs the airconditioning and starts the engines. They have to switch off the air to the airconditioning to start engines and then switch back.

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