13 Nov 2020: General Atomics MQ-9 B — Customs and Border Patrol — Sierra Vista, AZ
Probable cause
The pilot’s incorrect automated landing profile selection, which resulted in an impact with a runway trench. Contributing to the accident was the pilot receiving instruction's and instructor's failure to spot the incorrect landing profile selection during prelanding checks.
— NTSB Determination
Contributing factors
PilotInstructor/check pilot