Southwest Airlines will be cancelling over 40 flights for engine inspections. The nationwide cancellations will allow the company to inspect engine fan blades. The move comes after a deadly incident last week when a woman was partially sucked out of plane window when an engine exploded on a flight. Investigators are looking to see if a broken fan blade or the engine was responsible for the incident. Southwest says they minimized impact to flights last week by re-routing planes and using spare planes. They also said they’ve conducted inspections overnight.