I've never seen a vacuum failure, in over 800 hours of flying.
(Although I
did experience a vacuum attitude indicator failure a couple of months
ago...)

I experienced my first vacuum failure about 100 hours after I bought
my Warrior.

Augh -- I KNEW I shouldn't have said anything like that out loud! My DG
just went belly-up on my flight to Pella yesterday.

It's totally, 100% dead -- no movement or gyro spinning up at all. And I
just replaced the AI last month.

But the vacuum is still reading a good strong "5", for whatever that's
worth.

Nothing like losing both of your vacuum instruments within a month of each
other...
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"