What was found
AT F340 LEVEL OFF SELECTED, VNAV & AUTO PILOT ABRUPTLY NOSED DOWNWARD. RT FCC FAULTED IAW FIM FAULT TREE. R & R RT FCC, LOAD SW, OPERATIONS CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AT F340 LEVEL OFF SELECTED, VNAV & AUTO PILOT ABRUPTLY NOSED DOWNWARD. RT FCC FAULTED IAW FIM FAULT TREE. R & R RT FCC, LOAD SW, OPERATIONS CHECKED GOOD.