As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A MAINTENANCE PREFLIGHT INSPECTION, THE EMERGENCY EXIT LIGHT LOCATED BY THE LEFT AFT ENTRY DOOR EXTERIOR WOULD NOT ILLUMINATE. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY EXIT LIGHT BULB IAW BOEING MM 33-51-0, SYSTEM NOW CHECKS NORMALLY. (M)