this was the scene on the tarmac where passengers were forced to deplane. one person onboard the flight said as soon as the plane came to a halt the flight attendants began shottinuting for everyone evacuate. what have you learned? reporter: the key tell here is that all passengers and the crew onthality flight are okay at this hour as this investigation gets started. in terms of the flight itself it touched down in la guardia strange enough about the time it was scheduled to land after its service from indianapolis. again service from indianapolis. port authority investigators telling us that towards the end of that flight there were some passengers aboard that plane that reported to the crew there