fly the aircraft in this case. you know what the limitations are. >> there are no black boxes onboard to learn what happened inside the b-52 cockpit. investigators determine that holland, alone, pushed the b-52 beyond its operational safety limits and that he had done so on many previous occasions without reprimand. footage from the early 9 '90s shows holland show boating for photographers and flying below operational safety limits. >> those videos should have been enough evidence to ensure that bud never had the opportunity to fly unsupervised and be in command of an airplane of that. >> but senior command reportedly looked the other way. the investigation also reveals that months before the crash, mcgeehan asked his superior officer to ground holland for reckless flying. mcgeehan's request was denied.