What was found
(CAN) AIRCRAFT HAD A FLAPLESS LANDING, AFTER FLAP SELECTION 8, LT FLAP INDICATED ZERO, RT UNKNOWN, CREW THEN SELECTED TO 20 AND FLAPS TRAVELED TO APROX 5 DEGREES INDICATION WAS GREEN TRAVELED TO 5 DEGREES AND THEN TURNED WHITE. CREW THEN RETRACTED FLAPS BACK TO FLAP ZERO AND LANDED FLAPLESS, FLAP FAIL CAUTION WAS NOT ILLUMINATED. FERRY FLIGHT FOR TROUBLESHOOTING. T/S C/O AND ALL DCU`S ARE DISPLAYING THE SAME INFO, APPEARS TO BE POTENTIOMETER FAIL. WAITING FOR PART TO BE INSTALLED. (TC NR 20070123002)