As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN EMERGENCY LIGHT ON AND OFF INTERMITTENTLY-C/A-RAR BATTERY POWER SUPPLY #4 IAW AMM 33-50-04. REMOVED AND REPLACED BATTERY #4 IAM AMM 33-50-04. REMOVED AND REPLACED INVERTER #6 IAW AMM 33-50-11 SYSTEM OPS CHECK GOOD IAW AMM 33-50-00. OK FOR SERVICE. EMERGENCY LIGHTING BATTERY P/N 2013-1A S/N 104837; INVERTER P/N 7824-1