As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: L1 CABIN DOOR DIFFICULT TO CLOSE MAINTENANCE FOUND GUST LOCK ALIGNMENT PIN, BOTTOM WASHER AND SCREW DISLODGED AND CAUGHT IN GUIDE ARM. INSTALLED MISSING KEYWASHER AND SCREW INTO GUIDE ARM PIN NUMBER 9 AS PER AMM 52-11-21-400-802.