Regulators investigate ‘Dutch roll’ of Southwest Airlines’ Boeing 737 Max

WASHINGTON (AP) — Federal officials said Thursday they are investigating an unusual rolling motion on a Southwest Airlines Boeing 737Maxi This could be caused by a damaged emergency power control unit.

The Federal Aviation Administration said it was working with Boeing and the National Transportation Safety Board to investigate the May 25 incident, which occurred on a flight from Phoenix to Oakland, California.

The FAA said the plane entered a “Dutch Roll,” a combination of Yaw movement when the tail slides and the aircraft rocks from wingtip to wingtip. It is intended to imitate the movement of a Dutch ice skater.

Pilots are trained to repair the accident, and the Southwest plane landed safely in Oakland. No injuries were reported among the 175 passengers and six crew members.

According to Preliminary report An inspection conducted by the FAA after the aircraft landed revealed damage to a unit that supplies emergency power to the rudder.

The FAA said other airlines had not reported similar problems.