As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON BS 969 FRAME AFT SIDE AT STRINGER 23R. INSTALLED NEW FRAME AT BS 969 FRAME FROM STRINGERS 20L - 20R IAW DWG SH690-37060, REV AC, SRM 51-40-06-001-001-A01, AND SRM 51-42-21-001-001-A01. COMPLIED WITH ALL STEPS OF OF TASK CARD 51-900-1002-SKY. PRESSURE CHECKED GOOD.