As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FMCDU - L NOT INDICATING ON E/E COOLING MONITOR.(<P>TRANSFERRED TO MDDR 127569 IAW DDG 21-58-28 DUE 24AUG20, CAT D.<BR /></P><P>REF LOG PAGE 1150487 ITEM M7; REMOVED AND REPLACED MONITOR INDICATOR THE E/E COOLING AIR IAW 21-58-34. OPS CHECK NORMAL. NO DEFECTS NOTED AT THIS TIME. THIS CLEARS MDDR 127569.</P>)