DJI Spark
Flight Crew Remote Pilot (UAS)
Flight Crew Last 90 Days (UAS) 5; Flight Crew Total (UAS) 200; Flight Crew Type (UAS) 100
Troubleshooting
Aircraft Equipment Problem Critical; Inflight Event / Encounter Fly Away (UAS); Inflight Event / Encounter Loss Of Aircraft Control
Aircraft Lost / Unrecoverable (UAS); Aircraft Lost Link (UAS)
Software and Automation; Aircraft
Check flight for camera filters over unoccupied playing field.  While maneuvering UAS approximately 200 feet horizontally from pilot; and rotating UAS for different orientations to sun; message 'Center board failure' appeared on controller. UAS continued its forward path until distance to controller showed 1;250 feet; then 'Disconnect' warning followed by total lack of control. Return to Home feature did not function.Attempted to locate UAS by searching as close as possible to last recorded position. UAS not found.
Recreational/hobbyist pilot was flying a UAS when a lost link occurred. The pilot lost all control with the UAS and it was lost/unrecoverable.