......I did have the trim spring break while training. I had replaced the spring at the annual a few days earlier.Doug Riley said:It could be unpleasant if the spring broke while you were flying hands-off or had a very light grip. I would not expect the result to be deadly unless the aircraft were very prone to PPO -- such the first-generation Air Commands were.
I get chills thinking how much I flew my scary old A.C. (no HS, inverted engine, low seat) hands-off while doing aerial photography back in the 80's. Fortunately THAT spring never broke.