As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - MX LEVEL EICAS MSG 'R ENG EEC C2' DISPLAYED. AOC FIELD BLANK ON B COLUMN OF EPCS DISPLAYED FOR RT ENGINE. PERFORMED RT PIMU BITE. HAS CH A AND CH B AOC TR-CK FAIL (351-23) AND EEC CH B AOC FD-BK FAIL. INSPECTED AND CLEANED AIR OIL COOLER CONNECTOR PLUG. RAN ENG NO PIMU FAULTS. NO EICAS MSGS.