Irvine (Web Desk): A small, twin-engine plane crash-landed on the I-405 freeway during the tail-end of rush-hour, banging into the center divider, colliding with a car, scattering debris that at least three other vehicles couldn’t avoid and ultimately erupting in flames that charred the roadway.

The 55-year-old female passenger staggered out of the six-seat plane. The 62-year-old male pilot was pulled from the cockpit by an off-duty firefighter. Both had traumatic injuries, Orange County Fire Capt. Larry Kurtz said, and they were taken to Orange County Global Medical Center in Santa Ana.

“This could have been extraordinarily bad,” said Kurtz, noting that the pair, apparently a married couple, were conscious and had good vitals when first responders arrived.

Orange County Global spokesman Jeff Corless said, both are expected to survive, he said.

Somehow, no one driving on the notoriously busy I-405 was injured.

The Cessna 310R left John Wayne Airport, where it is based, to head to an unknown destination. But the plane ran into trouble soon after, forcing the pilot to turn back – and try to make it back to John Wayne, said Ian Gregor, a spokesman for the Federal Aviation Administration.

Just saw the craziest thing on the 405 near John Wayne airport. Thankfully they're saying everyone on the plane is alive ????????@ABC @CNN @MSNBC pic.twitter.com/auVd9PbsVu

— Wendy Haskell (@WendyHaskell) June 30, 2017

According to audio from the tower, the male pilot shouted to FAA controllers, “We got a mayday! We got a mayday!”.

“Your landing gear appears to be up,” a male voice replied.