As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:C RH BS 1480 #16 HOLE CRACK FOUND AT SPLICE PLATE AFT SURFACE RUNNING UP 1/8" AND RUNNING DOWN 3/16" LONG. REFER ATTACH SKETCH. (STR R33 TO R34) RH BS 1480 B/H SPLICE PLATE REPLACED DUE HOLE CRACK EXCCEED 'D' MAX LIMIT AS PER SB 747-53A2390 FIG 11.