As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: DURING EMERGENCY LIGHT TEST, FLOOR LIGHTS FROM ROWS 5D-10D DID NOT ILLUMINATE. SAME ON OPPOSITE SIDE 5G-10G. THE REST OF THE LIGHTS WENT OUT AFTER 1 MIN. MAINTENANCE REPLACED BATTERY PACK IAW AMM 33-51-06 OP'S CHECK GOOD IAW 33-51-00.