What was found
ON APPROACH, WHEN CONFIG FROM SLATS 15 TO FLAPS 15, RECEIVED FLAPS SYS 1 & SYS 2 FAULT. RECYCLED HANDLE TO SLATS 15 IAW PHASE ONES THEN RE-ATTEMPTED FLAPS 15, SAME RESULT FLAPS SYS 1 & SYS 2 FAULT. REVIEWED QRH, ELECTED TO DIVERT, ON APPROACH, CONFIGURED WHEN ATTEMPTED FLAPS 15, CONFIGURATION WENT TO SLATS 30 FLAPS 15. TRIED 20, RECEIVED FLAPS SYS 1 & SYS 2 FAULTS. MADE UNEVENTFUL 30/15 LANDING. TROUBLESHOT IAW TSM 27-50-02. FOUND LT WHEELWELL TORQUE LIMITER TRIPPED. FOUND LT NR 4 FLAP TRANS TORQUE LIMITER TRIPPED. LT NR 4 TRANSMISSION SERVICED TO FULL WITH NO EVIDENCE OF WATER CONTAMINATION. FOUND NR 4 JACKSCREW BALLNUT WITH VERY LITTLE GREASE. FILLED AND FLUSHED NR 4 JACKSCREW BALLNUT WITH GREASE. RESET BOTH TORQUE LIMITERS AND RAN FLAPS SEVERAL TIMES WITH ENG AT RUNNING. NO FAULTS OR JAMBS IAW MM 12-22-27-00, 12-13-27-00, AND TSM 27-50-02.