As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOPILOT CLICKED OFF DURING CRUISE FLT, TWICE. ONCE WHILE CMP A ENGAGED AND ONCE WHILE CMP B ENGAGED, ACFT WAS IN TRIM AT DISCONNECT. ACFT GROUNDED. BITE TEST SHOWED MCP REPLACED MCP IAW MM 22-11-34 ETOPS PN 822-1567-102 AS VERIFIED SEAMC.