As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB DUE TO CAPT AND F/O ADI SCREENS BLANKING THEN LOSING COLOR. GOT A FLT DK EQUIP SMOKE AND RECIRC FAN EICAS MSG. THEN RECEIVED A EQUIP OVHT EICAS MSG. SELECTING "ALTN" ON THE EQUIP COOLING SWITCH RESTORED SCREENS T NORMAL. REF L/P 927415 NR 1 REPEAT ITEM. CONFIRMED FAULT TO BE NR 2 FLT DECK SMOKE DETECTOR AND REPLACED SAME PER 21-58-19-2.