From NY Times:

And Asaf Rajuan, one of the passengers who raced to the cockpit, said he and five others “acted on instinct” to restrain the attacker as they realized the plane was out of control.

The plane nose-dived for what felt like 10 to 15 seconds, he said, adding that the passengers’ only hope of rescuing the plane was to work together. Without his fellow passengers, he said, “we’d never have survived.”

One of two other pilots who had been sitting in the row in front of him managed to stabilize the plane, he said, and the pair later landed the aircraft in Saudi Arabia.

Prime Minister Benjamin Netanyahu said in a video statement that one pilot had stabbed the other and “apparently attempted to crash the plane with its passengers on board,” nearly all of them Israelis.

He called the pilot who was stabbed, whom he identified as Capt. Smit Machchhar, a hero who saved the lives of 174 people.

“Despite being stabbed and seriously injured, he fought back, resisted, opened the cockpit door, and enabled passengers and crew to overpower the attacker — preventing a catastrophic midair disaster,” he said.