As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MZJ-EAC - FOUND WEB AT FINS STATION 570, 39 INCHES FROM LE, AND WEB FORWARD SPAR AT FIN STATION 570 CORRODED. INSTALLED FRONT SPAR WEB REPAIR AT STATION 570 PER B747 SRM 55-30-05 FIG 1. REPLACED INBOARD L-CHORD AND WEB ON LE RIB AT STATION 570 PER B747 SRM 51-20-01 AND 51-30-02. (M)