What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Aircraft on flight from Oklahoma to Maine, stopped for fuel in Illinois. Cruise altitude of 11,500' MSL. After flying approximately 2 hours at 11,500' MSL, radar date show erratic flight pattern, (climb and descent of 500 feet total) shortly followed by an extreme descent from altitude (11,600' MSL through 7,300' MSL in a 18 second time span. This discerned from radar and transponder hits by MFD ATCT). Right wing 1/3 outboard section separated from aircraft and found approximately 1/2 from impact site. Stabilator outboard 1/4 separated from aircraft and found 1/4 mile from impact site. Loss of control of aircraft from unknown causes at this time.
As the FAA filed it
(-23) AIRCRAFT ON FLIGHT FROM OKLAHOMA TO MAINE, STOPPED FOR FUEL IN ILLINOIS. CRUISE ALTITUDE OF 11,500' MSL. AFTER FLYING APPROXIMATELY 2 HOURS AT 11,500' MSL, RADAR DATE SHOW ERRATIC FLIGHT PATTERN, (CLIMB AND DESCENT OF 500 FEET TOTAL) SHORTLY FOLLOWED BY AN EXTREME DESCENT FROM ALTITUDE (11,600' MSL THROUGH 7,300' MSL IN A 18 SECOND TIME SPAN. THIS DISCERNED FROM RADAR AND TRANSPONDER HITS BY MFD ATCT). RIGHT WING 1/3 OUTBOARD SECTION SEPARATED FROM AIRCRAFT AND FOUND APPROXIMATELY 1/2 FROM IMPACT SITE. STABILATOR OUTBOARD 1/4 SEPARATED FROM AIRCRAFT AND FOUND 1/4 MILE FROM IMPACT SITE. LOSS OF CONTROL OF AIRCRAFT FROM UNKNOWN CAUSES AT THIS 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.