Report: Pilots warned of dangerous conditions before chopper crash

New information has been released on the deadly chopper crash in the East River last month.
The New York Times is reporting that pilots at Liberty Helicopters had warned management about dangerous safety conditions months before the incident.
According to the Times, the pilots even requested tools to allow passengers to more easily free themselves in an emergency.
Five people were killed in the March 11 crash. 
The pilot managed to escape.