As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT NR 1 MAIN ENTRY DOOR UPPER SILL WEB CRACK BS 460. S-17R. L=2" PER B747-400 SRM 53-10-15 R1 CATEGORY B. INSP REPEAT DETAILED INSP OF THE MAIN ENTRY DOOR 1 UPPER MAIN SILL OUTER CHORD, WEB, AND FRAME ATTACH ANGLES FOR CRACK(S). WITH 6000 FLIGHT-CYCLES FROM THE LAST INSPECTION. WITHIN 1500 FLIGHT-CYCLES AFTER THE ORIGINAL ISSUE DATE OF SB. REPEAT INTERNAL 6000 FLIGHT-CYCLES.