What was found
ON DESCENT DURING APPROACH GOT IAS ON PFD AND SELECT ELEV FEEL MAN, LVL 2 ALERT. ALSO HAD WINDSHEAR FAIL DET ALERT ON STATUS PAGE. STANDBY A/S SHOWED F/O'S INDICATOR ACCURATE. CAPT'S 10 KNOTS SLOW. RAN READ TAB. B Y TOUCHDOWN, F/O'S INDICATOR READ 156 KNOTS, CAPTAINS READ 118 KNOTS IN YELLOW. FOLLOWED T/S PER FIM34-11-02 AND FOUND A/S TOLERANCE BET CAPT AND F/O BEYOND LIMIT REF FIG 103 TABLE. PHYSICALLY INSPECTED PITOT PROBES FOUND SMALL DEBRIS ON CAPT PROBE WHEN PURGED. REMOVED AND REPLACED CAPT PROBE & NR 1 CADC PER MM 34-16-01 AND MM 34-11-01. PERFORMED SYS TEST PER MM 34-16-01-5, SATISFACTORY. COMPLIED W/ MTSI 34-10/9654 STEPS 1-6, SATISFACTORY.