hello spannersatc,
yes, by engine run up, i mean above idle, otherwise i agree with all the rest. in this tragic case the plane was at the gate & it seems that the engineer asked for a 75%N1 to check for a suspect oil leak, then when his baseball hat blew off due to the suction?wind towards the engine,his natural action was to try to grab it, lost his equilibrium & was subsequently aspirated into the engine. it reminds me of the same situation when driving along the roadside & a basketball appears from behind parked cars, you may be shure a few yards behind the kid will cross the road without looking in order to retrieve the ball.
here, clearly, standard procedures were not followed & somebody paid the highest price with his life. the bloodstained enginecowls are indeed a gruelsome sight.