As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L1 DOOR WILL NOT LATCH CLOSED. UPON INSPECTION FOUND JAM NUT BACKED OFF OF GUIDE ARM. ADJUSTED L1 DOOR GUIDE ARM REF MM 52 11 00 705 007 STEPS G.(1) (2)(C). DOOR FLUSHNESS AND DOOR CLEARANCE CHECKED GOOD REF MM 52 11 00 705 007 FIGURE 503. PERFORMED FORWARD ENTRY DOOR TEST REF MM 52 11 00 755 051. OPS CHECK GOOD.