Source: https://guides.developer.iata.org/docs/download-the-latest-standards

ChangeReasonCodeEnum enum

Enumeration set for the Change Reason Code BDT.Valid Values: POLI - Political situation; POSI - Aircraft positioning; HOLI - Holiday; FUEL - Fuel shortage; HDLG - Ground handling; INDU - Industrial dispute; OPER - Operational reasons; PERF - Aircraft performance; AIRS - Airspace restrictions; ARPT - Airfield restrictions; COMM - Commercial reasons, demand or lack of demand; CREW - Crew shortage; DAMA - Aircraft damage; EQUI - Equipment shortage; REPO - Aircraft re-positioning; ROTA - Aircraft rotation; RTNS - Return to normal schedule or reinstatement of flight status prior to issuance of ASM(s) (withdrawal of ASM change); RUNW - Runway restrictions; TECH - Technical reasons, maintenance, etc.; WEAT - Weather conditions
POLI
POSI
HOLI
FUEL
HDLG
INDU
OPER
PERF
AIRS
ARPT
COMM
CREW
DAMA
EQUI
REPO
ROTA
RTNS
RUNW
TECH
WEAT
["POLI","POSI","HOLI","FUEL","HDLG","INDU","OPER","PERF","AIRS","ARPT","COMM","CREW","DAMA","EQUI","REPO","ROTA","RTNS","RUNW","TECH","WEAT"]