Chinook
BAgle, Tandemrotor, Pulse1;
Fine, just ignore the obvious, and continue to deal with; an IRA plot to seduce the crew into the hillside; or an attempted military coup (if I understand W's posts correctly); or an unknown, unrepeatable, fugitive technical fault which seized the aircraft systems for about 20 seconds between waypoint change and impact, but them which vanished three secondes before impact leaving no post-impact evidence; or the effect of missing breakfast; (I am ignoring the possibiliy of little green men suddenly appearing in the cockpit of course) . Take your choice.
JP