As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURNBACK DUE TO RUDDER RATIO, AILERON LOCKOUT, AND NONE OF THE AUTOPILOTS WOULD ENGAGE. BOTH LT AND RT SAMS HAD SAM FAULT BALLS SET. FCC FAULTS SAM LT FCC AND SAM RT FCC. REPLACED LT AND RT SAM, LT AND RT CSEU PER AMM. PERFORMED RUDDER RATIO TEST PER AMM PERFORMED AILERON LOCKOUT TEST PER AMM. ALL GOOD. PERFORMED MCDP TEST 4030 ALL CK GOOD. OK FOR SERVICE.