What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Aircraft was in flight from park rapids, MN to chicago, IL at an altitude of 19,000 feet. Co-pilot's inner heated windshield cracked to the point that visibility was impaired. Pilot requested an altitude of 10,000, put on his oxygen mask and started descent. Aircraft pressurization was maintained. Aircraft landed at eau without further incident. Windshield heat was not on at the time.
As the FAA filed it
AIRCRAFT WAS IN FLIGHT FROM PARK RAPIDS, MN TO CHICAGO, IL AT AN ALTITUDE OF 19,000 FEET. CO-PILOT'S INNER HEATED WINDSHIELD CRACKED TO THE POINT THAT VISIBILITY WAS IMPAIRED. PILOT REQUESTED AN ALTITUDE OF 10,000, PUT ON HIS OXYGEN MASK AND STARTED DESCENT. AIRCRAFT PRESSURIZATION WAS MAINTAINED. AIRCRAFT LANDED AT EAU WITHOUT FURTHER INCIDENT. WINDSHIELD HEAT WAS NOT ON AT THE TIME.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.