As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE ACCEPTANCE CHECK OF THE IBEX, SN 10303, THE PFD 1 BLANKED OFF, IN THE REVERSION MODE, THE PFD 1 CAME BACK ON. SAME ISSUE WITH THE PFD 2 ON A DIFFERENT FLIGHT. MAJOR TROUBLESHOOTING AND INVESTIGATION TOOK PLACE BETWEEN ENGINEERING TO FIND OUT ABOUT THE ROOT CAUSE OF THIS PROBLEM.