As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOPILOT B DISCONNECTED AT 320 FT, IN SMOOTH AIR, NO TURBULENCE. ACFT GROUNDED. FAULT HISTORY SHOWED MCP NAV DATA INVALID MESSAGE 22-11607. ACCOMPLISHED FIM 22-11 TASK 817. NO FAULTS FOUND. INTERMITTENT DISCREPANCY. CURRENT STATUS PASSED. ACCOMPLISHED LRU REPLACEMENT TEST BITE 35 FCC/AT AND FULL BITE LIBRARY TEST A & B, ALL TESTS PASSED. GROUND VERIFICATION GOOD IAW AMM 22-11-00.