Officials Still Investigating Cause of Collinsville Plane Crash

Federal investigators released a preliminary report for the plane that killed two people after it crashed in downtown Collinsville earlier this month.

National Transportation Safety Board authorities were in Collinsville following the crash around back on April 7. At the scene a small plane headed to Manhattan Regional Airport had crashed into a vacant home and killed two people, later identified as a retired doctor and a Kansas State University fundraiser.

According to the NTSB report filed this week, investigators have yet to determined what exactly caused the plane to crash into the town just northeast of Tulsa. Their investigation is still ongoing and a final report is expected to be released.

Investigators canvassed the scene and found that the plane's impact left an approximately 4 feet deep and 10 feet in diameter crater. At the scene they also found the plane's engine and part of a propeller blade was visible in the crater, along with another wing nearby.

"A postcrash fire consumed part of the fuselage and rear stabilizer," according to the report. It went on to describe several other parts of the plane found around the wreckage site.

While it hasn't been determined what exactly caused the plane to crash, officials determined that communications with the Tulsa airport tower were normal. No emergency or distress calls were received from the pilot during the flight.

"The airplane reached 4,100 feet before a descending, right turn on the radar was observed. During the turn, the airplane disappeared from the radar."


A previous report from KTUL identified the retired doctor as Ronald Marshall, a 71-year-old from Manhattan, Kansas. His passenger was 40-year-old Chris Gruber, the Director of Development for Kansas State University's Veterinarian Medicine School.

Gruber tweeted a picture of his "ride to Tulsa" the morning before the wreck. Kansas State University said Gruber had worked for the Foundation more than 8 years and was not traveling on university business, while Omaha media reported the men were in Tulsa for a gun show