By Tony Maglio Deckhand Todd Meadows died last month during production on season 22 of the Discovery Channel series Deadliest Catch. At the time his death was first reported, very few details were shared. On Friday, Meadows’ fellow deckhand and bunkmate on the Aleutian Lady explained what happened. Trey John Green III told Page Six the Bering sea was “calm” in the late afternoon of Feb. 20, but added the water was “only a degree or two above freezing.” The ship’s crew members were taking turns climbing into the boats to sift through crabs they’d just caught. Green said Meadows was in a pot, which was seated in the ship’s launcher, when it fell “over the rail” and into the chilly water. “It’s one of those things that none of us really understand,” Green, 30, said. “I don’t know what happened.” Meadows, who was 25, was “doing exactly what he was supposed to be doing,” Green added. “We’re like, ‘Holy crap, he’s gonna sink to the bottom.…