As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
5 EMERGENCY LIGHTS INOP AT FWD GALLEY/CABIN<[01] SWAPPED BATTERY PACK M0174 AND M01675 IAW AMM 33-51-06. PROBLEM FOLLOWED. SUSPECT BAD BATTERY AND POWER SUPPLY. PARTS NIS UNTIL 0800;[02] REMOVED AND REPLACED FWD L/H EMER LIGHT BATTERY PACK REF AMM 33-51-06. OPS TEST GOOD.