As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRFCRAFT UNDERGOING 4B CHECK, HYDRAULIC SHUT-OFF VALVE TO NR 2 ENGINE WOULD NOT OPERATE. WHEN NR 2 ENGINE FIRE PULL T-HANDLE WAS PULLED, THE CIRCUIT BREAKER FOR THE HYDRAULIC SHUT-OFF VALVE TRIPPED. TROUBLELSHOOTING REVEALED THE VALVE WAS STUCK IN THE OPEN POSITION. THE RED FLAG INDICATOR COULD NOT BE MOVED. REMOVED AND REPLACED SHUT-OFF VALVE.