As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 5604844) DURING SERVICE CHECK FOUND ROW 29-32DEF EMERGENCY LIGHTS INOP. REMOVED AND REPLACED POWER SUPPLY BATTERY PACK PER B737 AMM 33-51. SOME LIGHTS ILLUMINATED. FOUND BAD FUSE IN POWER SUPPLY ASSY. REMOVED AND REPLACED POWER SUPPLY FUSE PER B737 AMM 33-51. OPS CHECK GOOD.