As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER DOOR INTERCOSTAL IS CORRODED BETWEEN F.S. 319 TO F.S. 333 AT STGR 20 L. REMOVED INTERCOSTAL BETWEEN FS319 AND FS333 AT STRINGER 21L, LOCATED DRILLED UP NEW SERVICEABLE INTERCOSTAL PN#SH670-31822-1S. IAW CRJ900 SRM 51-40-06-001-001-A01.INSTALLED NEW SERVICEABLE INTERCOSTAL LH STRINGER 21L BETWEEN FS319 AND FS333 PN#SH670-31822-1S IAW CRJ 900 SRM 51-42-06-001-001-A01 AND SRM 51-42-21-001-001-A01.