marsha gonzales is getting first-hand accounts from witnesses.>> reporter: severe turbulence rocking a jet blue flight injuring two dozen people forcing an emergency landing. >> all of a sudden there was a big shake. and then right after that, there was a drop. >> the whole plane shook. >> i thought we were dead. i really did. >> spending passengers flying out of their seats.>> i was buckled and but the lady next to me was starting to fly. the guys behind us had hit the overhang compartment and it was cracked. that is how hard they hit. the plane making an emergency landing in south dakota, 22 passengers and two crewmembers brought to the hospital. this flight attendant was taken neck brace. >> we were moving around the cabin. >> another plane brought in finally bringing some of those stunned passengers to sacramento. everyone injured on that flight has now been released from the hospital. marcy gonzales, abc news.>>> other airline news, massive outage that forced delta airlines to cancel thousands of flights this week shows how vulnerable the airlines software is. today the airlines