No fatalities
19 Oct 2023: BOEING 787 8 — UNITED AIRLINES INC — Chicago, IL
Probable cause
The flight crew’s misperception of the distance required to safely pass the hangar and failure to request additional ground handling support while taxiing, which resulted in a collision with a hangar. Contributing to the accident was United Airlines Maintenance Ramp personnel’s ambiguous taxi instructions and lack of obstruction clearance guidance.
— NTSB Determination
Contributing factors
Flight crewMaintenance personnel