URGENT!What problems does united airlines face?

i am planning to yze the problems faced by united airlines in terms of their customer service, surviving competition and airfares but i am unable to find supporting doents. so i am wondering if you'll cud help me to find articles and stuff that say something about the issues faced by united airlines. PLS THIS IS URGENT BECAUSE I NEED TO SUBMIT MY BUSINESS PROJECT SOON! THANKS IN ADVANCE!!