As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - EMERGENCY EQUIPMENT - DURING C-18 CHECK FOUND THE FORWARD LAVATORY WALL MOUNTED EMERGENCY FLASHLIGHT WILL NOT BLINK WITHIN 10 SECONDS. MAINTENANCE REMOVED AND REPLACED FORWARD EMERGENCY FLASHLIGHT BATTERY, OPERATIONAL CHECK WAS GOOD.