What was found
ERRONEOUS AIRSPEED INDICATIONS ON APPROACH. AT 1500 AGL CAPT AS INDICATED 180 STBY INDICATED 180 KTS F/O INDICATED 170 KTS. AT 500 FT AGL CAPT IND 158 KTS STBY 160 KTS F/O 140 KTS. AT 100 FT AGL CAPT 140 KTS STBY 140 KTS F/O 118 KTS. *S/D* RESET SYSTEM. PERFORMED OPERATIONAL CHECKS (OPS CK) ON THE AIR DATA REFERENCE (ADR), INERTIAL REFERENCE (IR), PROBE HEAT COMPUTER (PHC), ELECTRONIC INSTRUMENT SYSTEM (EIS) AND DOCUMENTED NO FAULTS FOUND. ACCOMPLISHED GROUND SCAN AND POST FLIGHT REPORT (PFR) REVIEW. NOTED NO FAULTS OR WARNINGS RECORDED.