As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON ARRIVAL EICAS STS MSG - FLIGHT CONTROL SYS - DISPLAYED. ON MAT FOLLOWING MAINT MSG SHOWN. 1) 24-50242, FC BATTERY-R- VOLT LOW, 2) 27-10510,SPOILER PCU -11- & 27-10503 SPOILER PCU-4-DOES NOT FOLLOW COMMAND. UNABLE TO GET PROBLEM SOLVED THRU MAT TESTER A-C POWER DOWN. REPLACED FLIGHT CONTROL LEAD ACID BATTERY -R. ALL TEST PASSED & ALL MSG'S CLEARED.