As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOPILOT REVERTED TO CWS IN PITCH /ROLLWITH VNAV/LNAV DISENGAGING TWO TIMES UNCOMANDED. BOTH TIMES RESET TO NOM OPS. GROUNDED - YES. PERFORMED IFIM 22-11-00-810-D20 ND IFIM 22-11-00-810-D21. NO ACTIE FAULTS. ONLY DFCS SHOWED RT FMC INTERMITTENT NO INFO FOM ADIRU. DUE TO FAULT IN FLT, ACCOMPLISHED A LAND VERIFY REF 22-11-00/201. ALL TESTS PASSED. NO PREVIOUS HISTORY.