The National Transportation Safety Board says that pilot error led to the crash of a sky-diving plane near Marion last May.
The small plane operated by Skydive Lost Prairie crashed May 12 near a private airstrip. The Cessna 182 had just taken off when it circled back, approached too low and went down 200 feet short of the runway, federal investigators said.
Five people were killed.
The NTSB says it believes that the pilot failed to put an oil cap back on after checking the oil. After take off, oil then splattered on the windshield.
Investigators say he lost control when trying to return to the runway because the plane was overweight.