As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - AMBER DASHES THROUGH LAST 3 DIGITS OF #1 ENGINE FUEL FLOW IN FLIGHT. PERFORMED BITE OF EEC, FOUND FMU FUEL FLOW XMTR CLASS 3 MESSAGE. FOLLOWED TSM TASK 73-21-72-810-928-A. REMOVED AND REPLACED LEFT ENGINE FUEL METER UNIT PER AMM 73-21-52. LEAK CHECK GOOD. OPS TEST GOOD AT THIS TIME.