Hi Vev,
Interesting stuff indeed. I'm afraid despite working in acronym-happy IT for decades I couldn't work out what R-LOC was, so had to probe the web. For others in the same position - here it is :-
R-LOC is runway loss of control. These are overshoots, undershoots, skids, slides, crosswind incidents, hard touchdowns and all sorts of runway mayhem related to the inability to just basically control the airplane.
Cheers
Neil