As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REPORTED THAT THE FLIGHT DECK DOOR HARD TO OPEN IN FLIGHT AND THAT THEY HAD TO PUSH WITH BODY WEIGHT TO GET IT TO OPEN. MAINTENANCE CLEANED AND LUBRICATED THE FLIGHT DOOR LATCHES. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED.