As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURN BACK AFTER TAKEOFF, ALL SIX DISPLAY UNITS BLANKING COMPLETELY OFF & THEN BACK ON WITH ERRONEOUS FLIGHT INFORMATION. FLIGHT DATA IN HUD WAS NORMAL & OPERATING NORMALLY. R & R BOTH NR 1 & NR 2 DEU'S, DISPLAY & COAX COUPLERS IAW MM.