What happened
Upon touching down on the runway, the aircraft veered off the left side of the runway. The aircraft then struck a parked airplane and continued its path into a hangar. Once inside the hangar, the aircraft struck another parked airplane before finally coming to a stop.
Following the accident, state authorities arrested the pilot. During the investigation, a supply of prescription sedative medication was discovered inside the airplane.
The investigation
An examination of the aircraft did not reveal any mechanical abnormalities regarding the engine, the landing gear assembly, or the airframe.
A review of the pilot's medical records by the NTSB Medical Officer was conducted. On the pilot's most recent application for a second-class airman medical certificate, the pilot had indicated "Yes" in response to questions regarding both substance dependence and alcohol dependence or abuse. Under the section titled "Comments on History and Findings," the pilot noted involvement in an airplane crash and stated that substance abuse was involved.