As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXIT SIGNS AT ROW 8 AND 16 INOP. REMOVED AND REPLACED EPSU BATTERY PACKS NR 2 AND NR 4. OPS CHECK GOOD ON NR 4 OPS CHECK BAD ON NR 2. INSPECTED AND FOUND PIN LOOSE ON CONNECTOR 347 FOR EMERGENCY LIGHTS, REINSERTED PIN. OPS CHECKS GOOD. (NR2 EPSU P/N:AD2013-1A S/N:130402)(#4 EPSU P/N:2013-1A S/N:110537) / "