It's sad to think that YU-AGJ may have come to such an undignified end. That aeroplane and its sister ship, AGI, must have given years of faithful service to JAT and NW Orient before. I don't know how the pair fared for technical reliability but I don't remember any significant delays on the PUY-LBA-PUY rotations. Having said that, my ex-boss had frequent contact with them both and has told tales of absent engine fan blades and unserviceable APUs (provided they had APUs in the first place) !