As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FIRST OFFICERS PFD LOST AIRSPEED AND ALTITUDE MOMENTARILY SEVERAL TIMES FOLLOWED BY DISPLAY SOURCE 2 WARNING LIGHT. BOTH ENGINES PLACED INTO ALTERNATE MODE PER QRH. LOST FIRST OFFICERS FLIGHT DIRECTOR ON FINAL. MAINTENANCE REPLACED DEU #2 IAW AMM 31-62-21.