What was found
DURING HEAVY MAINTENANCE VISIT, 2EA CRACKS WERE FOUND AT RH #5 ENTRY DOOR AFT UPPER CORNER BY OPEN HOLE INSPECTION AS PER SB 747-53A2839 REV IR, PART 4. THE CATEGORY B REPAIR WAS ACCOMPLISHED IN ACCORDANCE WITH HAECO XIAMEN'S ENGINEERING NOTES EB-53-2861 REV IR, WITH REFERENCE TO BOEING SR 3-5365651623 & 3-5373949927, WITH DEVIATIONS TO SB AND AD 2013-19-15 APPROVED BY FAA FORM 8100-9 DATED ON AUGUST 8, 2022. DETAILS OF WORK WAS DOCUMENTED IN HAECO XIAMEN'S NRC WKL4563.