An elderly passenger in an SUV traveling on Interstate 24 died Monday after a drive shaft from another vehicle flew through the windshield of the vehicle, striking her.
The incident happened around 10:30 a.m. in the eastbound lanes of I-24 at the Rock Springs Road overpass, just east of Sam Ridley Parkway in Smyrna.
Anne Hudson, 77, of Georgia, was seated in the front passenger seat when she was hit.
She was taken from the scene by LifeFlight helicopter and later died at Vanderbilt University Medical Center in Nashville.
The Tennessee Highway Patrol is investigating although charges are not anticipated.
The drive shaft, which could have weighed anywhere from 45 to 90 pounds, dislodged from a pickup truck, bounced off the tire of another vehicle and smashed into the windshield of Hudson's Chevy Equinox.
Troopers called it an "unfortunate accident" and said there was nothing any driver could have done.
No one else was injured in the accident.
Mechanic John Rohelier told News 2 there is no safety mechanism to keep broken drive shafts from failing off vehicles but the driver may have heard a clicking or popping noise.