As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG EEC MODE L LEFT ENGINE ELECTRONIC ENGINE CONTROL (EEC) IS IN THE ALTERNATE CONTROL MODE DUE TO A CONTROL SYSTEM FAULT. STATUS MSG-7761121 INACTV TO MODE. REPLACED DAMAGED MANIFOLD. ENG RUN PER JRH. EPR & EEC NORMAL. LEAK CHECKS OKAY.