hairy wrote:
.............and when the system goes wrong you get..................

Hey!
That wasnt the first time, it was the second and definitely not the last!
I was walking next door the other day, off to retrieve a lamp from the parts room and I heard the alarms going. My tool box was in there, the Challenger door was open, and Dennis had the airplane on a slipper jack changing a tire. I went over to see if the door was still open, Dennis had shut the doors on three airplanes, and rolled out tool boxes into the other hangar before the foam made it up front. The system was shut off by valves before it could get too deep. 3 Challengers and a few other airplanes in the hangar that day. It cleaned up in about 3 hours.
I set it off about a year ago, but we got to the override button before the foam came on.
That picture above is about 7 years old now, we see it at every aviation gathering we go to including the IA renewall meetings. The Hawker up front was really nice with sparkling purple swirled carpets and matching office equipment. The Citation was a sugar, imported from germany, for short money, repainted and operated locally. The pilot didnt put the oil cap back on on one trip, the master caution light came on for "low oil pressure" at about 8000 feet. He told the FAA that We didnt have enough time to do it, after he asked to borrow my funnel because it was cheaper for him to do his oil himself!