As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE FL 400 B AUTOPILOT DISENGAGED. GROUNDED - YES. PER B737-900 FIM 22-11 TASK 801 PERFORMED DFCS BITE. CURRENT STATUS CHECK PASSES. FLT LEG 1 HAD FAULTS 22-11627, 22-11607 FOR CHAN A AND B. COMMON LRU IS MCP. LEG 2 HAD OTHER SIMILAR FAULTS FOR MCP. REMOVED & REPLACED MCP REF B737-900 AMM 22-11-34, OPS NRML. ACCOMP DFCS CURRENT STATUS TEST REF AMM 22-11-00 - TEST PASS, NO FAULTS FOUND. ETOPS SIGNIFICANT SYS GND VERIFICATION SUCCESSFUL.