As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD EQUIPMENT EXHAUST FAN EICAS MESSAGE DISPLAYED AFTER FAULTY GPU POWER CART FAILURE.(<P>DEFERRED FORWARD EQUIPMENT COOLING EXHAUST FAN PER MEL 21-58-04-02-01, CAT "C", DUE ON 25FEB2020 AS PER MDDR 124720.</P><P>LP 1191221 - ITEM M1: REMOVED AND REPLACED FWD EQUIPMENT EXHAUST FAN IAW AMM 21-58-06. OPS CHECK NORMAL. NO DEFECTS NOTED. NO EICAS MESSAGE PRESENT. THIS CLEARS DMI 124720.</P>)