Originally Posted by golfandfly

HSLD,

Are you really that curious? OK, in this case if they were indeed having a conversation that kept them NORDO for close to an hour, there are big problems indeed. Most events are understandable, some are not. I can't comprehend a professional pilot that irresponsible. So the other distinct possiblility is that they fell asleep. Unfortunately, this happens. Happens to aviators, truckers, etc. Sometimes physiology takes its toll. Do you honestly believe these guys were having a conversation where they completely lost situational awareness for close to an hour?