What was found
UPON LANDING NOTICED THAT TILLER WOULD NOT MOVE EITHER LEFT OR RIGHT. TILLER APPEARED TO BE LOCKED IN CENTER POSITION. STOPPED STRAIGHT AHEAD ON RUNWAY. FOUND ICE ON TRAILING EDGE OF BOTH NOSE GEAR DOORS, MATING SURFACE AS WELL AS ON STEERING CABLES. APPLIED HEAT, AND DEICE FLUID TO REMOVE ALL ICE. CLEANED, AND LUBED STEERING CABLES. STEERING OPS CHECKS GOOD WITH RUDDER PEDALS AND TILLER WHEEL IAW AMM 32-51-00-5-3.