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Sunday, August 16, 2026 at 5:44 AM
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NTSB releases preliminary report on plane crash that killed Two Fallon Residents

NTSB releases preliminary report on plane crash that killed Two Fallon Residents
A diagram from the NTSB report following the December 5 plane crash that claimed the lives of Don Sefton and Valerie Serpa. The airplane’s flight track overlayed on a visual depiction of the BRUTE7 Departure.

 

By Robert Perea

The National Transportation Safety Board has released a preliminary report on the plane crash on December 5 in Medford, Ore. that killed two Fallon residents.

Donald Harbert Sefton, 69, and Valerie Jean Serpa, 67 were killed when the plane they were in crashed shortly after taking off from the Medford Airport.

The preliminary report does not say what caused the crash, but it details the circumstances surrounding the flight. The plan was a 1977 Piper PA-31-350 “Navajo Chieftain” twin-propeller plane registered to Sefton.

According to the report, Sefton flew the plane from Fallon to Medford on November 24, but after landing, Sefton noticed the plane was leaking a large amount of fuel from the right wing root. Sefton left the airport in Medford for repair and drove a rental car back to Fallon. On December 4, a mechanic notified Sefton that the repairs were completed. Sefton and Serpa drove back to Medford on December 5 to pick up the plane.

On takeoff, Sefton received instrument flight rules clearance for takeoff and an air traffic controller informed him the overcast layer base was at 200 feet above ground level and the top of the layer was at 2,500 feet. Responding to a question from Sefton, the controller instructed him to make a climbing right turn to overfly the approach end of the runway. Sefton’s acknowledgment of the instruction was his last transmission.

Seconds later, the controller stated that he was receiving a low-altitude alert that the airplane’s altitude was showing 1,700 feet. He made several attempts to reach Sefton, with no response.

The plane climbed after takeoff but began to gradually drop before climbing sharply up twice before it crashed. Six seconds after it reached an altitude of 2,250 feet, was the last time it was seen on radar.

The plane crashed adjacent to the garage bays of an automobile dealership located about half a mile from the departure end of the runway.

The report can be found on the NTSB.gov website. 

 

 


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COMMENTS
Comment author: Patti Cole Comment text: Marie will be forever treasured in memories. The memories remain of a soft-spoken, seemingly unassuming but determined individual who absolutely knew what path she wanted to take in life, and followed it. Her instinctive reactions, which highlighted her steadfast level of love and caring for her family, friends and all living things found in nature, hold lessons for us all. An unexpected splash of her self-deprecating humor, coupled with uncanny timing, will always bring a smile. For me, Marie lives on in the sighting of a Black-crowned night heron in the tules, the bloom of a beautiful spring flower and, most poetically, in the struggle of wildlife photographers handling their very large camera lenses. Comment publication date: 8/15/26, 9:31 AM Comment source: Obituary-Marie Dong Ko Comment author: John Chaney Comment text: I just figured out that Betty was my 1st cousin. Her dad Ted was my dad's brother. I never knew Ted or Betty, but I wish I did. I am 73 and live in IL. I am building my family tree and see where Betty has fit in. Blessings to you Curt and family. Comment publication date: 8/14/26, 11:04 AM Comment source: Obituary - Betty Lou (Chaney) Anderson Comment author: Karen Webb Comment text: I am so sorry to hear this. I loved coming to the carwash to see John! He always made my day. Prayers for all of his family during this difficult time. Comment publication date: 8/11/26, 8:56 PM Comment source: In Memory of John Evans Comment author: Laura Ivey Comment text: I am so very sorry for your loss of John. He always made my day when I went to the car wash. I will miss his joyous personality and that smile. Comment publication date: 8/10/26, 9:52 AM Comment source: In Memory of John Evans
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