As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPT EMER BULLNOSE LIGHT INOPERATIVE AT SEATS 30 TO 34ABC. TROUBLESHOOTING REVEALED FAILED BATTERY PACK. REMOVED SN 6899 5 & REPLACED WITH SN 146867 PN AD-D717-01-100 IAW AMM 33-51-06. OPERATIONS CHECKED GOOD IAW AMM 33-51-06. PART REPLACED AT LOCATION STATION 727K+B WL 212, LBL 68.