As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING TASK CARD 22-ASA-01, FOUND FAULT 22-11191 MT CMD MON DURING THE DUAL TEST 60.35. FCC-A. GROUNDED - YES. SWAPPED FCC'S AND THE DISCREPANCY FOLLOWED TO CHANNEL B. PLACED FCC-B BACK INTO ITS ORIGINAL POSITION AND REPLACED FCC-A REF MM 22-11-33/401. ALL TESTS NOW NORMAL.