As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT WAS GROUNDED. R1 DOOR WILL ONLY CLOSE PROPERLY HALF OF THE TIME. THE OTHER HALF THE DOOR GOES TO THE CLOSED POSITION BUT HAS A GAP ON THE AFT SIDE. (WHEN A/C ARRIVED OUTSIDE HANDLE WAS FOUND IN THE OUT POSITION). ADJUSTED THE R1 DOOR GUIDE ARM IAW AMM 52-41-820-801 STEP I. DOOR OPENS, CLOSES AND LATCHES NORMALLY.