As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING EMERGENCY LIGHT TEST, GOT AFT L EPSU FAULT MESSAGE REMOVED AND REPLACED AFT L EPSU AND BATTERY PACK, REF AMM 33-51-38. OPS CHECK GOOD AT THIS TIME. ADD EMP:U098939 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1248220 SN OFF 8117 IPC REFERENCE # 33-51-38-01 POWER SUPPLY, C OFF 31-3350-9-9001 8117 ON 31-3350-9-9001 1039 ACP''D IDT INSP REF GMM 09-10-05 REFERENCE UPDATE FOR WORK PERFORMED