Boy! That’s lacking a bunch of information, isn’t it? Was she on the ground and actually assisting the person they were looking for or did she fall from the helicopter or from the helicopter’s equipment? Why is the NTSB involved?
The NTSB will likely look into weather conditions and flight history, maybe performance of the flight crew. That is my guess.
The nurse fell from the hoist. I assume that means she fell in mid-attempt and from one description it seems as if the jogger had been lifted prior to the nurse’s fall; however, I am not positive.