As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFCS BITE LIBRARY 35 DUAL TEST SHOWS FAIL MSGS 22-11191 AND 22-11194 MT CMD MON. GROUNDED - YES. REMOVED AND REPLACED MACH TRIM ACTUATOR REF B737-9 AMM 22-11-24/401. OP TEST NORMAL REF AMM 22-11-24/501. DFCS BITE LIBRARY TEST 35 NOW PASSES. IFSAU TEST GOOD REF AMM TASK 22-11-37 & 22-11-00.