As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAXI FOR TAKE-OFF, WHILE PERFORMING THE EFC TEST, THE NR 2 ENGINE SHUT DOWN UNCOMMANDED. MAINTENANCE CHECKED RIGGING AND PERFORMED SEVERAL OPERATIONAL CHECKS. MAINTENANCE DETERMINED THAT THE HMU REQUIRED REPLACEMENT. THE HMU AND FLOW DIVIDER WERE REPLACED.