As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND CORROSION AT FRAME STATION 747 AT STRINGER 27 AND AT FRAME STATION 527 STRINGER 27L AND 27R. LEVEL 2 CORROSION. REMOVED CORROSION FROM STRINGER. FABRICATED AND INSTALLED 2 EACH STIFFENERS AND 2 EACH TIE REPAIRS IAW B737 SRM 51-10-6, 51-10-2, 51-30-2, AND 53-10-4 FIGURE 6. (M)