Passengers tossed about: What is the “Dutch roll” that a Boeing 737 suffered in mid-flight?

Un boeing 737-8 Max de la compagnie Southwest Airlines. https://imagebroker.com/9851686

While on a flight between Phoenix and Oakland, a Boeing 737 experienced a “Dutch roll” phenomenon. A malfunction which, although it did not result in injuries among the passengers, did, however, force the plane to be immobilized on the ground.

Definitely, Boeing has one series of disappointments. A 737 max had to be grounded after suffering a "Dutch roll” phenomenon. in mid-flight, while transporting passengers from Phoenix to Oakland, for the American company Southwest Airlines on May 25, reports BFM.

This phenomenon, called “Dutch roll”, corresponds to a malfunction of the “standby PCU (power control unit)”, indicates a report from the FAA, American regulator of transport, cited by our colleagues.

In short, these are lateral movements of the device. In an investigation report from the Ministry of Defense, the phenomenon is explained. "Dutch roll is defined as a coupled roll and yaw motion. This is the result of insufficient road stability (yaw) compared to lateral stability (roll)".

Airplane returned to factory

In the FAA report, the term accident is used. The pilots were able to regain control of the Boeing 737 and no passengers or crew members were injured. However, the plane was immobilized on the ground after landing until June 6. After this date he was sent back to the factory.

A new incident which has damaged the reputation of the aircraft manufacturer, which is the subject of an investigation by the FAA, after the 787 Dreamliner and the 737 MAX suffered numerous problems with production since 2023, which have slowed down the aircraft manufacturer's deliveries.