What was found
AIRSPEED UNRELIABLE, FIRST OFFICER AND STANDBY. REMOVED AND REPLACED AIR DATA MODULE PER AMM 34-21-04, BLEW OUT :1 PITOT PROBES. PERFORMED TEST WITH DPS 1000, ALL INDICATIONS ROTABLE PARTS CHANGE WAS INDICATED - TT # 1722353 SN OFF 4126 NORMAL. LAND VERIFY PERFORMED AND ALL TESTS PASSED. AIRCRAFT MAINTAINED FULL CAT CAPABLE. PARTS USED: 29-3413-9-0001,QTY DUE TO ADM REPLACEMENT, LAND VERIFY REQUIRED. LAND VERIFY PERFORMED IAW AMM 22-11-00, ALL TESTS PASSED. AIRCRAFT REMAINS FULLY CAT CAPABLE. MODULE, AIR DAT OFF 29-3413-9-0001 4126 ON 42-3413-9-0001 1171