As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON ARRIVAL L1 DOOR COULD NOT BE OPENED. WHEN DOOR DID OPEN IT MADE SOME LOUD GRINDING NOISES. FOUND SCREW & KEY WASHER MISSING FROM GUIDE ARM LOWER RADIUS LINK. INSTALLED NEW SCREW & KEY WASHER & DOOR OPERATES NORMALLY. REF MM 52 11 21 400 802 STEP 4. D G. NO RIGGING OR ADJUSTMENT REQUIRED.