As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE AT FL350. AUTOPILOT B DISENGAGED FOR NO APPARENT REASON. CONDITIONS=SMOOTH WIND 292/16 SAT =42. GROUNDED - YES. REL PER MEL 22-1F B SYSTEM AUTOPILOT INOP. MEL 22-99B CAT 111 AUTOLAND N/A SEAMC NOTIFIED DARREN. DFCS BITE CK SHOWS 22-11607 MCP DATA INV. CW B737-800 FIM 22-11 TASK 817 ALL MCP CHECKS CHECK GOOD. ACCOMPLISHED LAND VERIFY REF B737-800 AMM 22-11-00/201 ALL LLM TESTS PASS. THIS CLEARS MEL 22-1F AND MEL 22-99B FCP'S REMOVED SEAMC ANDY NOTIFIED.