As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN DOOR WILL NOT OPEN. ATTEMPTED FROM BOTH INSIDE AND OUTSIDE. OPENED AND INSPECTED MAIN CABIN DOOR. FOUND MISSING HARDWARE ON THE HANDRAIL OF THE MAIN CABIN DOOR OVER CENTER STRUT. REF IPC 52-11-21, FIG 1. INSTALLED NEW HARDWARE. OPS CHECK GOOD NO FURTHER DEFECTS NOTED. RETURNED TO SERVICE.