As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STATUS MESSAGE FLIGHT CONTROL SYS SHOWING ON LOWER EICAS. REPLACED RIGHT WING OUTBOARD AILERON POWER CONTROL UNIT AS PER AMM. AFTER AILERON ADJUSTMENT (RIGGING), OPERATIONAL TEST AND RIGHT AILERON ACTUATOR CONFIDENCE TEST, NO FURTHER MESSAGES PRESENT. ALL TESTS PASSED.