As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB-OUT CREW NOTICED YELLOW TAB INDICATING CAPTAINS DV WINDOW OPENED. CREW RETURNED TO FIELD WITH NO FURTHER INCIDENT. MAINTENANCE INSPECTED AND PERFORMED OPERATIONAL CHECK OF WINDOW WITH NO DEFECTS NOTED. LOCKED WINDOW AND RETURNED AIRCRAFT TO SERVICE. (M)