When the helicopter crashes into the water near the end of the movie and the rotor blades go flying everywhere.

First of all, after the rotor blades broke up and went flying everywhere (miraculously, none of the broken blade pieces hit anyone on shore) when they showed the helicopter again, the blades were back on the copter, albiet broken, but none the less still attached.

Assuming that the rotor blades would've been shattered completely off, the engines would've kept going until they ran out of fuel...if you've ever seen a helicopter accident, you'll know this to be true...

Okay...so the engines are no longer on...which means the generators are no longer online, what is powering the light on the front of the helicopter? The batteries? I don't think so...I don't know any helicopter search lights that are battery powered...they'd kill the battery within a minute.

The last complaint (actually I have many, but not for this slip-up) I have about this movie is during the rich guy (I forget his name) is in the water face to face with the croc...and he has the deputy start the helicopter. She would've had to first power up the APU (Aux power unit) before she could've started the engines. I takes quite a bit longer than they had to start a helicopter and get it up to power enough to take off.