As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EVIDENCE OF CORROSION EXIST ON INTERCOSTAL @STRGR 27(RIGHT) BETWEEN @FS349.00 & FS364.00 (C-CHECK RO 11/5/2021) EVALUATED CORROSION ON INTERCOSTAL AT SRGR27R BETWEEN FS349.00 - FS364.00 AS OUT OF LIMITS. REPLACED INTERCOSTAL REF. CRJ700 SRM 51-42-06-001-001-A01, AND DWG SH670-32050 REV -J. COMPLIED WITH TASK CARD 51-900-1002-SKY. PRESSURE CHECK GOOD, NO LEAKS DETECTED.