What was found
AIRSPEED UNREALIABLE FO SIDE APPEARS AS THE FAULTY UNIT AMBER IAS DISAGREE. REMOVED AND REPLACED F/O AIR DATA MODULE IAW OF AIR THROUGH RIGHT SYSTEM. OPS CHECK GOOD. NO CURRENT FAULTS DISPLAYED ON CDU. REMOVED AND REPLACED FIRST OFFICER PITOT PROBE. INSTALLATION TESTS PASSED. PERFORMED LEAK TEST, NO LEAKS NOTED. :1 BOTH CAPT AND F/O PARAMETERS WITHIN LIMITS. LAND VERIFY TEST PASSED, AIRCRAFT REMAINS FULL CAT CAPABILITY.