While flying from Phoenix to 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.
Clearly, Boeing has one set 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 transport regulator, 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 movement of roll and yaw. It is the result of insufficient road stability (yaw) compared to lateral stability (roll)”.
Airplane returned to factory
In the FAA report, the qualifier accident is used. The pilots were able to regain control in the Boeing 737 and no passengers or crew members were injured. However, the plane was grounded after landing until June 6. After this date it was returned 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 many production problems since 2023, which slowed down deliveries of the aircraft manufacturer.
