As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB OUT OF KMIA EICAS MESSAGE L ENG EEC AND ASSOCIATED L ELEC ENGINE CONTROL SWITCH INOP LIGHT ILLUMINATED. WE RAN THE L ENG EEC CHECKLIST IN THE QRH. DEFERRED LH ELECTRONIC ENGINE CONTROL IAW MEL 73-21-01-01B CAT C 11/21/21 @ 1350Z