As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANT REPORTED ALL EMERGENCY "EXIT" LIGHTS ON CABIN DOORS ILLUMINATED. NO OTHER EMERGENCY LIGHTS IN CABIN ILLUMINATED. PURSER PANEL EMERGENCY BUTTON VERIFIED OFF. ACCOMPLISHED TSM 33-51-00 AND FOUND BATTERY PACK AT 10WL FAULTED. REPLACED BATTERY PACK AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-38.