As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS MSG RT ENG OH LOOP -1- ON AFTER T/O AND STAYED ON. MTC IN PROGRESS. PREV MTC ACTION 17FEB. REPLACED WIRES W5316-001R AND W5306-002R PINS AND TERMINALS. MSG STILL ON EICAS. REPLACED M690 LOOP -2- CARD, ALL CKS GOOD. RAN ENG, NO FAULTS NOTED. REMOVED MCO AND PLACARD.