Uphononongo olutsha olusanda kukhutshwa luphonononge iinqwelomoya ezinokuthi zigibise abakhweli kwiinqwelomoya: inkqubo ebizwa ngokuba yi-involuntary prevention boarding (IDB), okanye amaqhuma eenqwelomoya. Ukusebenzisa idatha yoshishino oluluqilima ukusuka kwi-2018, kwaye ekukhanyeni imiphumo ye-Boeing 737 MAX yokumisa i-Aircraft ingxabano, iziphumo zokugqibela zophononongo zazimangalisa.

Iinqwelomoya zase-US ezinokuthi zikukhubekise, ngokusekwe ekukhweleni kungavunyelwanga ukuba ukhwele kubakhweli abayi-100,000 ngaba:

1. I-Frontier Airlines - 6.28 "amaqhuqhuva" ngabakhweli abayi-100,000

2. I-Spirit Airlines - i-5.57 "i-bumps" ngabakhweli abayi-100,000

3. I-Alaska Airlines - 2.30 "amaqhuma" ngabakhweli abayi-100,000

4. I-PSA Airlines - 2.29 "amaqhuqhuva" ngabakhweli abayi-100,000

5. American Airlines - 1.95 "amaqhuma" ngalinye 100,000 abakhweli

Amaqhuqhuva eenqwelomoya yinkxalabo eqhelekileyo eyoyikwa ngabakhweli abaninzi, ngoko ke iingcali zokuhamba zicinge ukuba iya kuba licebo elilungileyo ukujonga ukuba iyenzeka kaninzi kangakanani na, kwaye yeyiphi kwiinqwelomoya engoyena nobangela mkhulu. Amaqhuqhuva eenqwelomoya yinxalenye nje yenyani yokuhamba ngenqwelomoya kwaye abakhweli beenqwelomoya bonke bayawamkela loo ngozi ngalo lonke ixesha bethenga amatikiti abo. Kodwa uphononongo lufumanise ukuba kukho amathuba aphezulu ngokwamanani okungqubana neenqwelomoya ezithile ngaphezulu kwezinye. Kwaye lulwazi oluhle abahambi ukuba babe nalo ngaphambi kokuba bathenge amatikiti abo ngeli xesha leeholide.