As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AIRCRAFT WAS TAXIED OUT TO THE RUNWAY FOR INITIAL FLIGHT, WHILE CARRYING OUT TESTING IN THE HOVER IN WAS NOTICED THAT 100 LBS OF FUEL HAD TRANSFERRED FROM THE NR 1 FUEL SYSTEM TO THE NR 2 FUEL SYSTEM WITHIN 8 MINUTES OF TIME. ACFT WAS TAXIED BACK TO THE RAMP AND FLIGHT WAS ABORTED.