UPS crew's plane was taken out of service for fuel leak... only for crew to be put on replacement jet with far worse fault that ended in fireball crash and 15 deaths

A UPS crew's plane was taken out of service due to a fuel leak, but they were reassigned to a replacement jet that had a worse fault, resulting in a fireball crash and 15 deaths. The incident highlights a significant safety concern. The cause of the crash is attributed to the faulty replacement jet.