What was found
AIRCRAFT WAS GROUNDED: SPEED TRIM FAIL LIGHT ILLUMINATED DURING CLIMB OUT. BOTH AUTOPILOT CHANNELS INOPERATIVE. EMERGENCY DECLARED; FLIGHT DIVERTED TO DFW LANDING SAFELY. SPEED TRIM FAIL CORRECTED BY REPLACING LEFT HAND AOA VANE (AALA202211180728) PER AMM 34-21-05-400-801. AUTOPILOT CORRECTED BY REPLACING FIRST OFFICERÏ¿½S CONTROL COLUMN SWITCHING MODULE M1201 (AALA202211191280) PER AMM 27-41-51. ACCOMPLISHED SATISFACTORY TESTS.