What was found
ON CLIMBOUT PASSING 38.5 LOST AIRSPEED AND ALTITUDE ON CAPTAINS DISPLAYS-AIR DATA COMPUTER FAILED-ALSO GOT R AND L ENG EEC EICAS, RUDDER RATIO EICAS AND MACH/SPD TRIM EICAS-ELEV ASYM STATUS MGS-COMPLIED WITH QRH. REMOVED AND REPLACED LEFT ADC REF AMM 34-12-01-4, OPS CHECKED GOOD. R AND L ENG EEC EICAS TRANSFERRED TO LOGPAGE 3120647. REF FIM 27-21 FT 809 FIG 109 AND AMM 27-21-00-5-1 RUDDER RATIO OPS CHECKED GOOD. REF FIM 27-09 FT 813 FIG 106C MACH/SPD TRIM STAB SYS OPS CHECKED GOOD REF AMM 22-24-00-5. REF FIM 27-09 FT 809 FIG 106 ELEV ASYM LIMIT MODULE SYSTEM OPS CHECKED NORMAL.