>> the safety board also concludes that fatigue played a role in the accident by degrading the captain's performance. in the days prior to the crash, he's flown between three continents. he's suffering from bronchitis. and it's the middle of the night. >> when you have fatigue, it affects your decisionmaking. you're a bit impaired mentally because the fatigue takes over. you don't really process information. >> there are even more factors at play. august is the height of rainy season in guam. the captain might have been counting on a visual approach to the runway, but the jet flies into a downpour, making it difficult to see. >> so they were suddenly finding things were stacking up. they're not 100% sure where they are on the ground track. they're looking for visual cues that the heavy rain is preventing them from seeing, and