Southwest Flight Makes Emergency Landing After Engine Cover Rips Off Mid-Flight

• Southwest Airlines flight with 135 passengers made emergency landing in Denver after engine cover fell off during takeoff

• Cover struck the wing flap; plane returned safely to airport around 815am on Sunday

• Video shows blue engine cowling peeling off and twisting in wind before falling off

• Incident comes amid increased scrutiny of airline episodes like Alaska Airlines Boeing 737 Max 9 door plug blowing off

• Southwest passengers boarded another plane, arrived in Houston 3 hours late; airline apologized