What was found
DUE TO CAPTAIN`S AIRSPEED INDICATION INOPERATIVE, ALTERNATE AIR DATA SELECTED, FAILED TO CORRECT PROBLEM. CHECKED CAPTAIN`S AIRSPEED INDICATOR CONDITION, POWER AND GROUNDS AT CONNECTOR D101, REF WDM 34-13-11. CHECKED OK. FIM FAULT CODE 34012030 AND 4 34-12-78 CALL FOR INDICATOR. R & R CAPTAIN'S MACH AIRSPEED INDICATOR IAW MM 34-13-02-4. OPS CHECKED OK.