Air Force Capt. Forrest "Cal" Lampela was about to put the aircraft landing gear down in Shannon, Ireland, eight hours into a flight. If all had gone according to plan, he and his C-17 Globemaster III crew should have been more than halfway over the Atlantic.
He couldn't see the runway because of dense fog, catching a glimpse of it from only 100 feet above the ground — the absolute minimum altitude to which the large transport aircraft can descend before its pilot must either call for a landing or to abort approach.
Somewhere below, an ambulance stood by, waiting to pick up a sailor who had been wounded in combat and was in critical condition.
"I was a little bit afraid of where the ambulance was going to be because I didn't want him to try to run up on the jet while we still had engines running, because the fog was that bad," Lampela said.
He recalls it as "the most challenging landing that I've ever done." But on top of dangerous, foggy conditions, Lampela and the crew, call sign Reach 445, had just entered a country where they had not received diplomatic clearance before touching down.