Having worked on and around the cfm's amongst others for for over 25 years, there are numerous reasons to approach, inspect, and adjust a running turbine engine. The entry/exit zones are stated in the manual. As are the use and connection points of a safety harness. Also typically no need to be near an inlet hazard zone above idle power. A previous poster was correct, above idle fan cowls closed. It is sad that this fellow was was killed, what also is sad is that proper training and procedures weren't followed. Maybe in the future this will remind others of one of the dangers A&P"S or Engineers to you CAA types face each day on the line. Next time it could be you.