As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FRETTING CORROSION (UT) THICKNESS MEASUREMENT WAS ACCOMPLISHED PLATE RH OUTBD ON VERTICAL STABILIZER SPAR HINGE. FITTINGS WITH ORIGINAL THICKNESS =0.250" AND MINIMUM REMAINING THICKNESS IS 0.212" THEREFORE IT IS OUT LIMITS. SUMMARY OF NRC 00820: CORROSION LEVEL 2. PLATE RH OUTBD ON VERTICAL STABILIZER SPAR HINGE FITTINGS (2 EA) WERE REPLACED PER B717-200 SRM 51-41-05 PAR 8. (LP #0958134)