What was found
DURING FUEL DUMP, ELECTRIC MOTOR STALLED APPROXIMATELY 1/3 OF THE WAY DOWN. PULLED CIRCUIT BREAKER PER ABNORMAL PROCEDURE. A 170 LBS FORCE REQUIRED PER 1/4 TURN OF MANUAL DUMP HANDLE. DUMP CHUTES RETRACT NORMALLY. FOUND FUEL DUMP HOOKS DIRTY WITH SAND AND ANTI-CORROSION SPRAY. CLEANED, LUBED HOOKS AND DUMP VALVES. OPEN ELECTRIC AND MANUAL AS PER M/M 28-30-0. GROUND OPS NORMAL.