What was found
ON CLIMB OUT STARTED NORMAL FLAP RETRACTION-GOT A FLAP DISAG. FLAPS INDICATED 14- 17 IN AMBER BOXES ON CONFIG PAGE.PUT FLAP/SLAT HANDLE TO 15 DETENT,FLAPS THEN MOVED TO 10,THEN 4, FLAP HANDLE STILL AT 15. MOVED HANDLE TO 0 DEGS,FLAPS EVENTUALLY MOVED TO 0 DEGS.LANDED SLATS EXTENDED,FLAPS UP. WT APPROX 368,000 LBS ON TOUCHDOWN. LANDED WITHOUT INCIDENT. FACT, INSTALLED INBD FLAP CONTROL VALVE REF AMM 27-52-02-2. REPLACED BOTH RESTRICTORS AND ONE CHECK VALVE. CLEANED THE OTHER CHECK VALVE AS PRECAUTION. OPS CHECK AND LEAK CHECK GOOD.