tko777#777. TKO™ Friction Shield Engine Treatment. #830, #830-1. TKO™ Total Combustion Overhaul. #835. TKO™ 2000 Fuel System Tune UpPhoto of Thai Airways Boeing 777-300ER (HS-TKO) by Per Voetmann (Copenhagen Kastrup, Denmark) - Airport IATA code: CPH ICAO code: EKCH - taken on May 19th 2025 and published by airplane