As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOTH HSI AND ADI ON THE CAPTAIN`S SIDE DISPLAYED SG FAILED MESSAGE ON THE DISPLAY AFTER ENG SHUTDOWN. EFI SWITCH WAS CYCLED AND MESSAGE CLEARED ON BOTH HSI AND ADI. BOTH HSI AND ADI BITE CHECKED IAW FIM 34-22-FAULT TREE 808, NO FAULT FOUND AND OPS CHECKED GOOD.