What was found
BACK UP SILL AT STRINGER 21L BETWEEN BS 310 AND 319 WAS CORRODED. EVALUATED AND FOUND TO OUT OF LIMITS IAW SRM. REMOVED AND REPLACED IAW SRM, DWG SH670-31630, REV K, AND DWG, PRESSURE CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BACK UP SILL AT STRINGER 21L BETWEEN BS 310 AND 319 WAS CORRODED. EVALUATED AND FOUND TO OUT OF LIMITS IAW SRM. REMOVED AND REPLACED IAW SRM, DWG SH670-31630, REV K, AND DWG, PRESSURE CHECKED GOOD.