It was a typical Southwest Airlines flight from Phoenix to Oakland until something not so typical happened. A Boeing 737 Max found itself caught in a harrowing “Dutch roll” at 34,000 feet, causing structural damage to parts of the plane. The incident, which occurred on May 25, was not immediately reported to the National Transportation Safety Board (NTSB) by Southwest Airlines. In fact, the airline only informed the NTSB about the roll and subsequent damage on June 7, more than a week after the event took place.
For those unfamiliar with aviation lingo, a Dutch roll is a combination of yaw and rocking motion that can make the wings of an aircraft roll up and down. It’s the kind of situation that pilots train for, and most modern planes are equipped with a yaw damper to help correct the condition by adjusting the rudder. However, in this case, the Southwest plane suffered damage to a crucial unit that controls backup power to the rudder, as reported in a preliminary report by the Federal Aviation Administration. The damage was deemed “substantial.”
Experts were left scratching their heads over the location of the damage, speculating that it likely occurred in the plane’s tail fin where the power units are housed. This was particularly puzzling because the backup unit should not have been activated during a Dutch roll. Despite the severity of the incident, one expert pointed out that Boeing 737s are generally not prone to excessive Dutch roll due to design changes that help naturally dampen out such oscillations.
The NTSB wasted no time in downloading data from the Boeing 737 Max 8, the aircraft involved in the incident, to aid in their investigation. This data will be crucial in determining the exact length and severity of the Dutch roll and subsequent damage suffered by the plane. As the investigation unfolds, questions will undoubtedly arise regarding the maintenance procedures followed by Southwest Airlines and the overall safety of the Boeing 737 Max series.
In the high-stakes world of aviation, every incident serves as a sobering reminder of the complex interplay between man and machine. The Dutch roll experienced by the Southwest Airlines flight was a stark illustration of the unexpected challenges that can arise even in the most routine of flights. As investigators delve deeper into the details of this incident, the hope is that lessons will be learned and measures taken to prevent similar occurrences in the future.