HONOLULU -- A survivor of Friday's deadly tour helicopter crash on Kauai described the moments just after the crash when he feared for his wife's life and tried to save his father-in-law.

Mangled wreckage of the Heli-USA tour helicopter is being inspected by National Transportation Safety Board investigators trying to figure out exactly what went wrong Friday.

Bill Thorson was on the sightseeing tour with his wife Karen and her father Laverne Clifton.

Thorson recalled swimming to the surface after the crash in bad weather in waters off Haena, Kauai.

"I was getting ready to dive back down to get my wife, we had just been married six days, when she popped up and her life vest wasn't inflated," Thorson said.

Thorson said he inflated his wife's life jacket.

"She yelled, 'Where's my dad?' And I dived down, reached in the door, felt an arm, pulled and it just so happened it was her dad. But, those two other women, I didn't know whose arm I had. It was her dad," Thorson said. "I just saw the helicopter sink and the two women passengers I never did see them again."

Authorities Tuesday identified the last two victims as best friends from Portland, Maine. Mary Soucy, 62, and her friend Catherine Baron, 68, had been looking forward to their vacation here for more than two weeks, friends said.

"One of the things we did talk about was that they were going to do this helicopter tour it was going to be the highlight of their trip and so she was really looking forward to it," said Helen McGuiness, friend of Soucy and Baron.

The NTSB is expected to release a preliminary report within a week.