MY DAILY WEEK TEN

Wing and Stabilizer Deicing Systems 

Aircraft and turboprop commuter-type aircraft often use a pneumatic deicing system to break off ice after it has formed on the leading edge surfaces. The leading edges of the wings and stabilizers have inflatable boots attached to them. The boots expand when inflated by pneumatic pressure, which breaks away ice accumulated on the boot. Most boots are inflated for 6 to 8 seconds. They are deflated by vacuum suction. The vacuum is continuously applied to hold the boots tightly against the aircraft while not in use.

We did a troubleshooting of the deicing boots. We disconnected the distribution valve pipe and introduced pressurized air with a hose connected to the workshop's pneumatic system. 

The result was that the boots had huge leaks everywhere, there were many old repairs and almost all of them had jumped. In the video you can see the experiment we did to check the breakdowns. 



Since I've been messing around with the latest blog posts, this weekend I've counted it in post nine, so I'll tell you about a weekend from a longer time ago.

I went to visit the Hangar where I have several colleagues, one of them took a ticket to go see the planes, they let me disconnect a circuit breaker in the Boeing 787, it is done through a screen as if it were a computer.



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