Randy now you have asked the real question. Have I pulled all 4 nacells? [&o] No,, but I did do #3 and thought about the others.

But consider there were some indicators of problem before the flight. There was fuel leaking from the nacell just prior to take off and the engine was running ok,, I thought just what vented out of the vent line. (two line tank with 1 to muf. std) But I should have looked closer. The loose screw was the one on the stopper on the Dubro tank that I forgot to tighten. I guess the assembly line for 4 engines missed one. It was tight enough in the tank to work for a while until pressure moved the plug forward with vibration.

Everything else is tight, and no other engine is leaking or cycling.

One other indicator I should have seen was the engine needed 1 click change richer on the needle on that 1 engine prior to flight. ( I do use a precision tac prior the the first flight to confirm engine settings). The saito's need little if any adjustments so when just 1 of 4 needs adjustments it is time to look around.

Besides How else could I practice an engine out approach and landing. The only thing I forgot was to call the tower and declare and emergency.

Ok,, I have a sense of humor this morning.. too windy to fly winds 10 G to 20,,

Ya'll have fun and lets fly.