What was found
DURING SCHEDULED SERVICE CHECK, FOUND AFT EMERGENCY FLOOR TRACK LIGHTING AND RIGHT AFT EXTERIOR LIGHTS INOP. REPLACED BATTERY PACK PER BOEING M/M.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING SCHEDULED SERVICE CHECK, FOUND AFT EMERGENCY FLOOR TRACK LIGHTING AND RIGHT AFT EXTERIOR LIGHTS INOP. REPLACED BATTERY PACK PER BOEING M/M.