As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, MODE CONTROL PANEL DID NOT RESPOND TO INPUTS. PERFORMED MODE CONTROL PANEL LOCKUP QRH. MODE CONTROL PANEL OPERATES NORMALLY. GROUNDED - YES. REF B737-800 AMM TASK 22-11-00-740-806, DFCS BITE LIBARY MCP TEST PASSED W/O FAULTS. A/C RESTORED TO NORMAL CONFIG.