As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING LAND VERIFY TEST, A AUTOPILOT WOULD NOT ENGAGE WITH FAULT 22-11251. FOUND AN AUTOPILOT ENG INTERLOCK CIRCUIT BREAKER TRIPPED AND WOULD NOT RESET. ACFT GROUNDED. REPLACED MODE CONTROL PANEL, IAW MM 22-11-34, CHECKED GOOD. LLRU REPLACEMENT TEST REF MM 22-11-34/I501BITE TEST GROUP 32 AND AND LAND VERIFY TEST REF MM 22-11-00/201 BITE TEST GROUP 49 AND HGS FFC/AT TEST REF SSM 34-36-0 ALL CHECKED GOOD.