surabaya to singapore. that's because they didn't have a license to operate on sunday. the way this works, airlines have agreements with regulators they had the right to fly the route, it just didn't cover sunday in particular. officials here in indonesia, though stressing that that investigation is completely separate from the investigation into the crash. airasia says it's cooperating, certainly a piece of information that investigators will be watching though as the story develops ana? >> david molko, thanks for the update in surabaya this morning. a massive search area, weather, pounding waves, three unrelating factors as teams try to recover victims' bodies and the airasia plane wreckage. here's what one search team went up against in the java sea this weekend. it helps to understand how challenging the conditions are. waves up to 13 feet high rocking search vessels, spilling water on to the deck. a cnn crew was one of the few