CNN — Adam Simmons was working on the brakes of his daughter's Jeep Liberty in the driveway of their Plymouth home when suddenly the jacks gave, the car buckled and the rotor landed on Simmons' right leg.
"All of a sudden, it collapsed towards me and landed on my leg, pinning me right to the ground," said Simmons.
The routine fix-up had gone wrong in a split second.
His 22-year-old daughter, Rachael, was inside the house and heard her dad yelling.
"I ran out of the house and I saw him under my car, like right under the...the wheel was off, but like under the medal parts," said Rachael. "But, I just went and lifted like right under here and just lifted it off so he could get free."
Paramedics arrived, x-rays were taken at the hospital and doctors told Adam it could have been much worse the longer he had been pinned.
"She's my hero for it," said Simmons.