As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCP, F/O SIDE COURSE WINDOW DISPLAYING RAPID RANDOM NUMBERS. GROUNDED - YES. R/R DFCS MCP IAW B737-900 AMM 22-11-34 PB401. PERFORMED MCP INSTALLATION TEST PER AMM 22-11-34-740-801. TEST GOOD. PERFORMED DFCS LAND VERIFY TEST PER AMM TASK 22-11-00/201, ALL TESTS PASSED.