Just had a Pitot static system fail on a Gulfstream G-IV during a pressure test

I was running a leak check last Tuesday and the airspeed indicator started bouncing like crazy at 15,000 feet sim altitude. Turned out a little O-ring in the drain valve had dried out and cracked. Anybody else run into weird issues with older Gulfstream pitot static components holding up?

2 comments

2 Comments

margaret_nelson11d ago

I feel your pain, my O-rings have been throwing tantrums older than my first marriage.

wesleyjohnson11d ago

Man, that's rough. O-rings can be real stubborn when they get a mind of their own.