As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 2231 STR 24L FOUND 1 HOLE CRACKED AT AFT FRAME INNER CHORD AS MARKED, CRACK LENGTH 3/4" AT REVEAL, 0.030"/0.040" AT CHORD. CABIN BS 2231 AFT FRAME INNER CHORD REPAIRED AT BETWEEN S23L TO STR 26L AREA AS PER SRM 53-10-04 FIG 115 AND REVEAL PANEL REPAIRED AS PER SRM 51-40-02 FIG 1. CONTINUE INSPECTIONS IS REQUIRE REF SRM 53-10-04 FIG 115 TABLE II AND B747-53A2450 FOR REFERENCE.