What a sad and terrible waste. This is the second one reported in R&N in just a few months is it not?
Something is very wrong in the industry if it permits such obvious risk to go unmanaged and inevitable accidents to occur.
Where is the master engineering oversight that might have prevented it?
If the operative controlling the engine was an engineer, see above. If the operative was a pilot, then where again was the necessary training, control procedure and oversight.
A poor 24 year old has died, not just because he was too close, but because nothing stopped him.
It's like working on a roof with no scaffolding or safety rails - how can it be permitted? If training, control procedures and master oversight are not the solution, why aren't such engineers forced to wear harnesses and short lanyards attached to their van or the undercarriage or something that prevents them going in?