As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/AHYDRAULIC POWER CAME ON PRIOR TO ENGINE START ON PUSHBACK, BOTH YOKES WENT 3/4 FULL LEFT TURN FOR NO REASON. A/P OFF.R/R AILERON RUDDER TRIM AILERON CONTROL MODULE PER AMM 27-21-23-022-001 & 27-21-23-422-007 OPS TEST AILERON & AILERON TRIM CONTROL SYS PER AMM 27-11-00-715-417 & OPS TEST RUDDER TRIM CONTROL SYS PER AMM 27-21-00-715-001-002.