What was found
AFTER T/O, FLAPS 15/20 DEGREES WOULD NOT RETRACT. FLAP SYS 1 & 2 FAULT, DIVERTED. NR1 SFCC SHOWS ALL 5 FLAPS FAIL IND ILLUM INDICATING SFCC FAILURE REPLACED NR1 SFCC IAW FIM 27-50-10, FIG 101, AMM 27-51-18-04. FOUND LT FLAP TORQUE LIMITER IND TRIPPED. LUBED L/W FLAP JACKSCREW IAW AMM 12-22-27. RESET TORQUE LIMITER RAN ENGINES AND OPERATED FLAPS SEVERAL TIMES, NO FAULTS NOTED.