As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH AND RH AVIONICS DOOR FWD INTERCOSTALS ARE CORRODED, BETWEEN FS 349 AND FS 364. REMOVED AND REPLACED INTERCOSTALS 27L ABD 27R AT FS 349 TO FS 364. REMOVED AND REINSTALLED 2 EA GUSSETS AND 2 EA. ANGLES AND PROX SWITCH BRACKET IAW CRJ 900 SRM'S 51-40-11-001-001-A01, 1-42-21-001-001-A01 AND 51-42-06-001-001-A01. WVAC STAMP #776 MTC