Southwest 737 MAX Suffers Dutch Roll; FAA and NTSB InvestigateThe FAA is investigating a Southwest 737 MAX after an in-flight 'Dutch roll' incident on May 25 led to the discovery of a damaged rudder control unit.Apr 8, 2026•5 min•Southwest AirlinesBoeing 737 MAXFAANTSBDutch RollSafety