As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCOVERED EMERGENCY LIGHTS ILLUMINATED AND WOULD NOT EXTINGUISH IN FLIGHT. REMOVED AND REPLACED BOTH FWD AND AFT EMERGENCY BATTERY SUPPLY WITH A MODIFIED BATTERY FOR THE FWD AND TESTED BATTERY PACK FOR THE AFT. OPERATIONS CHECK SATISFACTORY. REFERENCE CHAP 33-52-01. FWD PN 640-13560-00; FWD SN 001950; AFT PN 640-13560-00; S/N 000647.