United States April 18, 2018 11:20 am Searching for Clues After Southwest Engine Explosion The NTSB is conducting its investigation into Southwest Flight 1380 to find out what caused the engine to break mid-air. The plane was inspected two days before the incident. US & World Videos 1:44 Pro-Palestinian protesters remain on UPenn's campus despite warnings to disband 1:30 Protests calling for ceasefire continue at Penn 6:33 Family affair: Former Eagle and new Eagle Jeremiah Trotter and Jeremiah Trotter Jr. speak out 0:20 Teen girl shot in Southwest Philly, suspect in custody 0:27 FBI inspects American Airlines plane at PHL after bomb threat
