As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN LT SIDE BETWEEN STA 1438 AND STA 1460 S-20L AND S-22L HAS CORROSION AT WINDOW FORGING LOWER AFT SIDE. REMOVED WINDOW FORGING PER 747 SRM 51-30-05. REMOVED CORROSION FOUND TO BE OUT OF LIMITS PER 747 SRM 51-10-01. REPLACED WINDOW FORGING PER 747 SRM 51-30-05. ALODINED WINDOW FORGING PER 747 SRM 51-10-01 AND PRIMED PER 747 SOPM 20-41-02.