WAUSAU, Wis. (CBS 58) -- New video and audio is showing the immediate aftermath of gubernatorial candidate Tom Tiffany's plane crash.

New documents released by the Marathon County Sheriff's Office include 911 calls, radio communication, and videos from the scene.

These records show how Marathon County first responders were able to locate Tiffany and the pilot, then pull them from the water to safety.

It was 8:47 Saturday night when the 67-year-old, single-engine plane had a mechanical issue, lost power, and went down in Lake Wausau.

Congressman Tom Tiffany and pilot Leonard Boltz called 911. Their side of the call was not recorded.

The 911 dispatcher said to them, "I understand it's sinking. Are you guys out of it at all?"

A witness also called 911 from a nearby park.

"We were hanging out in the back of my truck," he said, "and there was a water plane that came in and they crashed."

The witness added, "They were coming down pretty smooth and then they just went nose first."

Within seconds, emergency dispatchers coordinated a response.

One first responder said over the radio, "That's affirmative. We're going to be in search for a downed plane."

Emergency crews got to the shoreline less than five minutes after the 911 call was made.

"Can you get another ambulance rolling this way and one more engine, please," one asked.

But first responders struggled to find the partially submerged plane in the dark.

"We're having the pilot try to wave lights, something like that," a dispatcher said. "Their running lights are still on, but they're under the water."

Tiffany and Boltz stood on the plane wings for a time and stayed on the phone with 911.

That 911 dispatcher told them, "Let me know if you guys are going to have to swim, but we do have a boat coming on the way. A couple boats, actually, to save you guys."

But when the plane started to sink, they were forced to swim toward a shallow area.

Soon after, a rescue boat located them.

"We got eyes on the plane," a responder in the boat radioed. "We got an eye on the pilot. Approaching."

Then soon after, "Battalion, we have two victims in the water. We're just pulling them out now."

They pulled Tiffany and Boltz to safety, saying, "Airboat is headed back to the landing with two victims. Both are alert and conscious."

Other first responders and DNR crews remained with the plane.

The FAA and NTSB are investigating the plane crash as they do for every incident. Those investigations can take months, even years, to complete.

Tiffany is expected to resume campaigning Thursday.