What was found
ATC FAULT EICAS MSI ATC FAIL LIGHT ON TRANSPONDER ALSO FAULT ON TCAS REPLACED BOTTOM ATC ANTENNA CHECKS GOOD IAW MM MCO AND PLACA REMOVED ETOPS CATEGORY (B): DIVERSION OR TURNBACK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ATC FAULT EICAS MSI ATC FAIL LIGHT ON TRANSPONDER ALSO FAULT ON TCAS REPLACED BOTTOM ATC ANTENNA CHECKS GOOD IAW MM MCO AND PLACA REMOVED ETOPS CATEGORY (B): DIVERSION OR TURNBACK.