>> mcmahon: oh, absolutely.bsolutely. >> kroft: we decided to retrace the flight, to try and find out how blackwater 61 got so far off track on a morning when the flying conditions were perfect. some of the answers you'll hear from the pilots themselves in this cockpit voice recording recovered at the crash scene. >> captain noel english: yeah, with this good visibility, it's easy as pie. >> kroft: the tape has never been made public. you haven't heard the actual voice transmission? >> mcmahon: no, no, i haven't. >> kroft: we have a copy of it, if you want to hear. >> mcmahon: yeah. yeah, i'd love to hear it. >> english: i swear to god, they wouldn't pay me if they knew how much fun this was. >> kroft: the captain, noel english, and his co-captain, butch hammer, had only been in afghanistan for 13 days, and neither one of them had ever flown the route between bagram and farah. and their inexperience showed. they didn't file a flight plan, and instead of taking the easier route to the southwest with lower mountai