text: # -*- coding: utf-8 -*-
  
  #Assignment Provision
  #1. Hangar
  
  #2. Aircraft Status (change from 
  #Parking to Flying/Maintenance, 
  #Flying to Maintenance/Parking, 
  #Maintenance to Flying
  
  #3. Violation
  #Force to perform maintenance --> assign aircraft which is parking to fly
  #sorting
  
  
  