As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STATUS MSG "L ENG OH LP2 "KEEPS COMING ON AND OFF DURING THE FLIGHT. PER MCC REQUEST, PERFORMED LEAK CHECK AT L ENG PYLON HEAT EXCHANGER AND PRSOV DUCTS PER AMM 36-00-00. NO LEAKS NOTED. PLACED ON MEL 26-11-2-1. PLACARD INSTALLED, MX PROCEDURES C/W. A/C REMAINS NON-ETOPS. A/C RETURNED TO SERVICE.