What was found
WHEN SELECTING FLAPS TO 15 ON APPROACH TO LANDING RECEIVED A STAB MIS COMP CAUTION. AIRSPEED WAS AT 190 KTS. RAN QRH AND IT DID NOT CLEAR. CORRECTIVE ACTION: POWERED UP AIRCRAFT STAB MISCOMPARE STILL THERE. RESET CB AND RAN ENGINES BUT LIGHT REMAINS ON. SLAVED IN NEW SWITCH AND OPS CHECKS WAS GOOD. 04/21/25 JG DG INSTALLED SWITCH WITH AN NEW UNIT AND PACKINGS. HOOKED UP PITOT EQUIPMENT AND OPERATIONAL CHECKS WERE GOOD IAW CE-560XL/XLS MM 27-40-00.