What was found
AT FL 350 IN LEVEL CRUISE .82M RECEIVED FLAP DISAGREE W/FLAPS AT 0 DEGREE/RET9 INDICATING 0 DEGREE/RET ON CONFIG PAGE. UPPER AND LOWER AIRSPEED FEET CAME TOGETHER ON CA SIDE. AP1 WAS ENGAGED. FO SIDE SHOWED NORMAL. THIS OCCURRED SEVERAL TIMES INTERMITTENTLY AND QUICKLY ENOUGH TO NOT BE ABLE TO DETERMINE PROPER SIDE FOR ACCURACY. DECLARED EMERGENCY AND RETURNED TO HNL. INTERROGATED CFDS, FCC NR 1 SHOWS NO CURRENT FAULTS OR PREVIOUS LEG FAULTS. PERFORMED ADJUSTMENT/TEST OF NR 1 CADC REF AMM 34-16-01-4, ALL TESTS PASS. CONSULTED WITH MOCC. PRECAUTIONARY REMOVED AND REPLACED NR 1 CADC REF AMM 34-16-01-4. PERFORMED ADJUSTMENT/TEST ON NR 1 CADC AND PERFORMED AUTOLAND TEST REF AMM 34-16-01-5, ALL TESTS PASS. NO 90-DAY HISTORY. A/C OK FOR SERVICE.