As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND DURING INSPECTION. NOSE GEAR FOLLOW UP DOOR, P/N 45A31615-21 ON BRACKETS PN 45A31613-9, 45A31613-7 AND 45A31616-3 AT ATTACHING RIVET HAS CRACKS GOING FORWARD TO AFT THOUGH THE FIRST RIVET ALONG THE RIVET ROW. RELATIVE WIND PUSHING AFT ON THE DOOR WHILE GEAR IS EXTENDED FOR TAKEOFF AND LANDING AND VIBRATION. USING THICKER MATERIAL DURING MFG AND OR ADDING A DOUBLER. (K)