As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE WRONG PART WAS INSTALLED ON THE RAD ALT COVER AT FS 1031 (C-CHECK RO 11-05-2021) REPLACED DOUBLER WITH NEW. REF DRAWING MM670-35007 REV. W, CRJ 700 SRM 51-42-06-001-001-A01 & 51-41-02-001-001-A01. LEAK CHECK GOOD. COMPLIED WITH 51-900-1002-SKY