What was found
ON TAKEOFF ROLL DURING 80KT CHECK, FO AIRSPEED INDICATION MALFUNCTIONED. CONTINUED ON CAPT INSTRUMENTS. MESSAGES: IAS DISAGREE, MACH/SPEED TRIM, & RUDDER RATIO. ON SHUTDOWN, ELEV ASYM STATUS MESSAGE. COMPLIED WITH QRH. FO AIRSPEED INCREASED STEADILY FROM 30 KTS ON GROUND TO 330 KTS AT 16000 FT. CORRECTED WHEN CAPT ADC SELECTED. TROUBLESHOT IAW FIM 34-12 FT 808. LAST FLIGHT FAULT SHOWS ADC SYS RT FAULT. GROUND TEST 30 SHOWS ADC RT FAULT. R & R RT ADC IAW AMM 34-12-01-4. TEST FAILED. INSTALLED ORIGIONAL ADC. R & R ADC IAW AMM 34-12-01-4. PERFORMED ADC OPS TEST IAW AMM 34-12-01-4 & 34-12-00-5. TESTED IAW 22-00-02-2, NO FAULTS FOUND. INSPECTED PITOT PROBE IAW AMM 34-11-01-6. NO DEFECTS FOUND.