Aviation investigators, trying to determine why a Boeing 737 jet with 143 people on board skidded off a Jacksonville runaway and into the St. John's river Friday night, think they could have a big clue.
Bruce Landsberg, Vice Chairman of the National Transportation Safety Board, mentioned to reporters that a thrust reverser, which helps a plane rapidly slow down, was discovered to be broken.
That could explain why the jet overshot the runway and slid into shallow water.
There are also a couple of other factors as well that could have contributed to the plane crash.
There was stormy weather at the time of the landing, and the pilots also made a last minute decision to switch runaways to one that was shorter.
None of 136 passengers and 7 crew members died, however several pets in the cargo hold of the plane, which is flooded with water, have not been recovered yet.