As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*CORROSION ON RAD ALT ANTENNA DOUBLER BETWEEN FS 1000.00 - 1015.00, STGR 27 - 26L (C-CHECK RO 4/3/2021) REMOVED 2EA. CORRODED SHIMS ON RAD ALT ANTENNA DOUBLER AND INSTALLED 2EA NEW SHIMS WITH PN MM670-70327-001 AND MM670-70329-001 WERE INSTALLED ON RAD ANTENNA DOUBLER BETWEEN FS 1000.00 - FS 1015.00, STGR 27LH - STGR 26LH I.A.W. REF CRJ700 SRM 51-42-06-001-001-A01