As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM - ON LANDING. ENG 1 AIR EXCHANGER FAULT. ENG 1 MINOR FAULT.// PERFORMED TROUBLE SHOOT PER TSM 79-20-00-810-809-A. VISUAL INSPECTED AIR OIL/HEAT EXCHANGER, NO DAMAGE FOUND. PERFORMED FADEC SYSTEM TEST PER AMM 73-21-00. SYSTEM TEST OK. NO FAULT DETECTED. AIRCRAFT OK FOR SERVICE.