Greg I am an incident investigator,workplace health & safety officer and a Registered training organisation to train & assess forklift operators. I regect the word "ejected" I would be looking else where to discover the root cause of the incident. I have tested many operators on this unit and have yet to find one with an ejector mechanism fitted. (Forgive me for my mirth)
Operators have a habit of concealing the true facts! You need to look deeper & look into the operators habits, get reports from his fellow workers.
THese units do millions of lifts daily -world wide and are safe look to the operator not the machine.