What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On 2/15/2011 the aircraft departed Des Moines international airport on a test flight for purposes unrelated to the accident. Approximately 20 minutes into the flight, the right aileron departed the aircraft. The pilot declared an emergency and landed the aircraft back at Des Moines airport without further damage. Examination of the aircraft revealed that the outboard attach bracket remained with the aileron when it departed the aircraft. The inboard and middle attach brackets remained attached to the wing and did not exhibit any damage.
As the FAA filed it
ON 2/15/2011 THE AIRCRAFT DEPARTED DES MOINES INTERNATIONAL AIRPORT ON A TEST FLIGHT FOR PURPOSES UNRELATED TO THE ACCIDENT. APPROXIMATELY 20 MINUTES INTO THE FLIGHT, THE RIGHT AILERON DEPARTED THE AIRCRAFT. THE PILOT DECLARED AN EMERGENCY AND LANDED THE AIRCRAFT BACK AT DES MOINES AIRPORT WITHOUT FURTHER DAMAGE. EXAMINATION OF THE AIRCRAFT REVEALED THAT THE OUTBOARD ATTACH BRACKET REMAINED WITH THE AILERON WHEN IT DEPARTED THE AIRCRAFT. THE INBOARD AND MIDDLE ATTACH BRACKETS REMAINED ATTACHED TO THE WING AND DID NOT EXHIBIT ANY DAMAGE.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.