As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FRAME TO SKIN SHEAR CLIPS ON THE FS 970 FRAME WERE FOUND CORRODED ON THE SKIN FLANGES. THE CORROSION WAS REMOVED BY TRIMMING OFF THE FLANGES. THE SHEAR CLIPS WERE REPAIRED WITH ALUMINUM ANGLES. INSTALLED PER THE B727 SRM 53-10-4, FIG 11 AND ER/A 378259-14.