I can tell all sorts of horror stories about bucket trucks.
About a errant tree branch falling on the controls......
Was something on the equipment disabled when those incidents occurred?
I'm just asking, because I've been in the rental biz for ~25 years repairing and maintaining personnel lifts....from little 19' DC scissors up to 135' 4 X 4 booms and they
all are built with at least one dead-man device preventing accidental and unintended actuation of the controls.
Stuff can fall all over the controls and nothing is going to happen
unless the operator is stepping on the footswitch, or squeezing the joystick enable trigger, etc. at the same time.
Oh, we get stuff back off rent every day with all sorts of inventive bungee cords, rebar tie-wire, bent pieces of welding rod, wraps of duct tape or electrical tape, etc. "bypassing" the dead-man safeties.....but then any horror stories told by the operators are their own fault. One manufacturer's line of equipment we carry added a 7 second delay relay to their controls package years ago to circumvent the operator's....ummm......creativity in bypassing machine dead-man devices. The timer relay gives the operator 7 seconds from the time the dead-man footswitch is depressed, until he or she actuates a controller. If the 7 seconds elapses without a controller command from the operator....functions lock out completely until the footswitch is released and depressed again. So that carefully sawed hunk of 2 X 4 the operator cut to "bypass" the dead-man doesn't work when he wedges it in the footswitch, because the relay just times out and locks out all of the functions.
Then the site foreman calls and wants me to drive out and "fix" the machine that "doesn't work".
Not trying to be a "safety nazi" or anything, I'm just saying.....