As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - ON FLIGHT 2396, DURING BAGGAGE FIRE EXITING TEST "VALVE OUTLET" LIGHT DOES NOT ILLUMINATE DURING AFT BAGGAGE FIRE TEST. MAINTENANCE REMOVED AND REPLACED AFT BAGGAGE PIT AIR OUTLET VALVE. OPERATIONAL CHECK GOOD AIRCRAFT RETURNED TO SERVICE.