What was found
ON APPROACH WHILE SELECTING FLAPS 5, GOT EICAS TE FLAP DISAG . COMPLETED QRH, LANDED WITH FLAPS 20. DECLARED EMERGENCY AIRBORNE, CANCELLED EMERGENCY UPON LANDING. APPROACH AND LANDING UNEVENTFUL. TE FLAP DISAG OCCURRED APPROX 2000 FEET ALTITUDE, 200 KNOTS, A FEW SECONDS AFTER SELECTING FLAPS 5. WE WERE AT FLAPS 1 SETTING FOR 20 SECONDS PRIOR TO SELECTING FLAPS 5. PERFORMED BITE TEST ON FSEU REF AMM 27-51-01-2 AND FIM 27-51-00-815-809 FIG 104A. NO EXISTING -FAULT FOUND. HOWEVER FOUND FAULT CODE 27-51104 ON LAST FLIGHT LEG. REF FIM 27-51-00-815-810 FIG 105 ; BITE CANNOT IDENTIFY SPECIFIC FAULT. INSPECTED TRAILING EDGE FLAP WITH NO DISCREPANCY NOTED. CYCLED FLAPS FROM 0 TO 1 DEG AND THEN TO 5 DEG AND FROM 5 TO 35 DEG SEVERAL TIMES. NO DISAG LIGHTS OR MESSAGES. NEEDLES FOR LEFT AND RIGHT WERE TOGETHER. FLAPS OPERATED NORMAL. REF: AMM 27-51-00-5-0