MONTICELLO, Iowa — Federal investigators said a fatal plane crash in Jones County in 2017 likely was caused by the pilot’s dog.

The final National Transportation Safety Board crash report, released this week, said Jerry Naylor’s plane was in good working order before it crashed on July 1, 2017.

The single-engine aircraft went down in a cornfield near a runway at Monticello Regional Airport, killing Naylor, 90, of Scotch Grove.

An autopsy showed he died of multiple blunt-force injuries from the crash. Naylor’s dog, Jasmine, was flying with Naylor and survived with minor injuries.

Investigators found that Naylor often flew with his 70-pound dog and constructed a “homemade, removable, plywood device to prevent the right seat passenger (or his dog) from inadvertently contacting the rudder pedals during flight.”

A pilot flying near the airport said he was communicating by radio with Naylor just before the crash.

The NTSB report states that the probable cause of the crash was “the dog’s likely contact with the flight controls during landing, which resulted in the pilot’s loss of airplane control.”

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