As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN-ROUTE, THE MID LAV SMOKE DETECTOR BEGAN TO ALARM DURING FLIGHT. THE CABIN CREW NOTED A LIGHT HAZE THROUGHOUT THE CABIN. THE FLIGHT CREW SHUT DOWN THE LT PACK AND CONTINUED. FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE ACTION PENDING.