As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 1560 TO 1580 AFT LT WINDOW FORGING REMOVED FOUND STR CORROSION. CORROSION BLEND OUT 0.040 INCH BY 1" BY 5" EXCEED SRM LIMIT. NEW STRINGER SEGMENT AND SPLICE ANGLE INSTALLED AS PER RS R-53-61-35239 AND ENGINEERING FILE NUMBER : 747-53-20222.