Deerc DE22
Flight Crew Last 90 Days (UAS) 7.15; Flight Crew Total 7.15; Flight Crew Total (UAS) 7.15; Flight Crew Type (UAS) 7.15
Troubleshooting
Aircraft Equipment Problem Critical; Inflight Event / Encounter Fly Away (UAS)
Aircraft Lost Link (UAS); Aircraft Lost / Unrecoverable (UAS); Flight Crew Took Evasive Action; Flight Crew Returned to Home (UAS)
Aircraft; Software and Automation
Recreational Drone FlyawayDeerc DE22 Drone over .55lbsBattery status: FullController charge: estimated 95% FullSet leveling; then compass. Flew to check position (5 feet straight up) noticed a slow left roll. Landed. Powered off drone and controller. Carefully checked all props. Checked arms for cracks. Reseated battery. Turned on; leveled; set compass again. Appeared to fly in place. Checked controls at 5 feet. OK to fly. Started climb. Noticed a marked right roll at 35 feet. Tried to roll to left to bring it back; no response. Increased altitude to avoid tree. Tried to turn and fly back; no response. Hit RETURN HOME. RETURN HOME button was flashing on controller (which is correct). Watched drone continue to roll to the right until out of sight. After a few minutes left controller on landing pad with RETURN TO HOME still flashing; jumped in the car to try to reacquire visual. Never saw it again.
UAS pilot was flying when an un-commanded turn began and never stopped. UAS pilot was unable to regain control of the UAS and a flyaway occurred.