ATB(Air Turn Back) ATC(Air Traffic Control) ATIS(Automatic Terminal Information Service) APU(Auxiliary Power Unit) PIC(Pilot in command) Co-pilot EDCT(Expected Departure Clearance Time) F/O(First Officer) GTB(Ground Turn Back) IFR(Instrument Flight Rules) ILS(Instrument Landing System) LCC(Low Cost Carrier) RTO(Rejected Take off)・離陸中止 RWY(Runway) TCA(Terminal Control Area) TO/GA(Take-off/Go-around