LOS ANGELES (AP) — A preliminary investigative report on last month's private jet accident at Santa Monica Airport provides no indication of why the aircraft crashed into a hangar, killing the pilot and three passengers.

The National Transportation Safety Board report dated Tuesday says witnesses to the Sept. 29 accident observed the twin-engine Cessna 525A make a normal approach and landing after a flight from Hailey, Idaho.

The airplane traveled down the right side of the runway, eventually veered off to the right, hit a sign indicating 1,000 feet of runway remained and continued its right turn until it hit a hangar and burned. The report says there was no airplane debris on the runway and the three landing gear tires were inflated and had no unusual wear. The crash occurred at 6:20 p.m.

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