What was found
CAPTAIN`S TCS BUTTON STUCK. RETURNED TO FIELD. LANDING UNEVENTFUL. R & R CAPTAINS TCS SWITCH IAW AMM 27-31-06-400-801, STEP 4, A, 6. CW PERTINENT PARTS OF AUTOPILOT FUNCTIONAL CHECKED AMM 22-11-00-720-804 4, B, 4, C, P 540-541. AP AND TCS TESTED GOOD. RETURNED TO SERVICE.