As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON CLIMB OUT, AUTOPILOT A AND B WOULD NOT ENGAGE. FLIGHT RETURNED TO DFW LANDING SAFELY. REPLACED FLIGHT CONTROL COMPUTER A. REPLACED AILERON POSITION SENSOR M937. ADJUSTED AILERON ACTUATOR INPUT ARM A . ACCOMPLISHED SATISFACTORY OPERATIONAL TESTS PER AMM 22-11-29, AMM 22-11-33, AND AMM 22-11-25.