On April 17, 2018, Southwest Airlines Flight 1380, a Boeing 737-700, departed LaGuardia for Dallas Love Field. Thirty minutes into the climb, at 32,000 feet, the left CFM56-7B engine suffered a catastrophic fan-blade failure. The separated blade triggered a chain reaction: the inlet and fan cowl broke apart, fragments struck the fuselage, and a piece of fan cowl shattered the window at row 14. The cabin depressurized instantly. One passenger, Jennifer Riordan, was partially sucked out and later died of her injuries. Captain Tammie Jo Shults, a former U.S. Navy F/A-18 fighter pilot, took the controls. First Officer Darren Ellisor ran the checklist. The aircraft rolled 41 degrees left. Shults stabilized it, donned oxygen, and began an emergency descent while coordinating with ATC. She chose Philadelphia International—evaluated the options in seconds—and landed 17 minutes after the failure. The NTSB called the crew’s actions exemplary. The investigation found the fan blade had cracked from low-cycle fatigue after 33,000 cycles, and that prior service bulletins had not yet required inspection of this specific blade.