A fresh mid-air event on a Southwest Boeing 737 MAX 8 caught Washington’s attention, shining light on an unusual yet severe motion called “Dutch roll.” Though rare, this wobble led to clear physical harm to the plane damage bad enough that it’s stayed grounded for weeks now. Because of that, both the FAA and NTSB jumped in, launching a close look at what really happened up there.
The event happened on Saturday, May 25, 2024 Southwest flight WN746 headed from Phoenix (PHX) to Oakland (OAK). This plane, a Boeing 737 MAX 8 just one year old and tagged N8825Q, had 175 travelers onboard along with six crew. Though new, it faced issues mid-journey.
About 40 minutes into the flight, while flying near 34,000 feet, the plane started Dutch rolling. Most airline pilots don’t see this unless they’re in a simulator so it caught them off guard. It’s a tricky kind of wobble that messes with stability. Still, the crew managed to steady things. They reached Oakland Airport and touched down on runway 30 roughly 55 minutes after it began, nobody hurt.
Post-flight findings and aircraft grounding
Once on the ground, workers checked the plane, finding harm to its body especially the part managing flight direction. U.S. experts later said some pieces, like the reserve controller and maybe the tail fin, were badly hurt. That spare unit kicks in when the primary one fails, keeping steering possible.
The extent of the harm caused the plane to be taken out of service right away. After staying in Oakland through Thursday, June 6, 2024, it was moved to Paine Field (PAE) in Washington. That’s where Aviation Technical Services handling repairs for Southwest is located; since then, the aircraft hasn’t carried any passengers.
A Dutch roll happens when a plane swings its tail while tilting sideways, not in sync. Some say it looks like a skating move once common in the Netherlands. Ken Byrnes who helps lead aeronautical studies and runs the flight program at Embry-Riddle says this wobbling mix of turning and banking shows up if side-to-side and nose-direction motions don’t work together right
Aerodynamic mechanics and historical context
Byrnes further elaborated, stating that “In Dutch roll, the aircraft experiences a rolling motion primarily driven by the design (dihedral effect) of the wings, while simultaneously yawing due to the adverse yaw effect caused by the sideslip angle. This coupled motion results in a dynamic instability where the aircraft oscillates in both roll and yaw directions.” Aeronautical engineer Dinuwan Galwatta outlined the stages: starting with a roll and sideslip, leading to unequal lift and increased drag that causes yaw, and finally involving the vertical stabilizer’s role in attempting to counter the yaw, which can lead to overcorrection.
Back in the day, Dutch rolls caused real trouble some planes even crashed because of it. Still, today’s jets come built with fixes to handle the issue better. John Cox, who used to fly big jets and now advises on flight safety, said 737s don’t usually swing into wild Dutch rolls; leave them alone, they’ll settle down on their own. While most hefty airplanes, as Byrnes mentioned, carry a yaw damper a smart setup that tweaks the rudder automatically to stop those rolling motions.
The incident caused harm to the plane’s frame, especially hitting a secondary power system tied to the rudder and upright fin, which worried aviation specialists. Robert Sumwalt, who covers air safety for CBS News, stressed how serious it was “When flight controls move on their own, that can mean trouble; when there’s real damage, it becomes way more concerning.” Though pilots managed to take back command and touch down without injury, showing solid preparation, the wreckage hints this wasn’t just routine turbulence or small glitches.
Crew observations and early warning signs
The NTSB’s early findings give a first look at what happened, also pointing to key issues needing deeper review. During prep before departure, the pilot saw an earlier note about the yaw damper acting up overcompensating, but fixes were said to have been done ahead of this trip. On top of that, while moving on the ground and climbing after liftoff, he felt brief resistance in the rudder controls, a detail becoming more relevant given how things unfolded later.
After hitting some mild bumps in flight, the plane went through a brief Dutch roll. Through all of it, the autopilot stayed on. Both pilots said the motion wasn’t strong no warning light came up for the yaw damper, which usually means trouble. They talked it over, thinking maybe the yaw dampener wasn’t working right since it’s supposed to stop that kind of sway.
Then they dropped down to 32,000 feet to check what was going on. While doing that, Dutch roll popped up once more, just short bursts, and the pilot said he felt slight motion in the rudder pedals. After noticing those issues, the team got in touch with ATC and headed toward Oakland instead, touching down safely before pulling the plane out of rotation right away so it could be fully checked over.
Maintenance timeline and investigation focus
Big thing right after the May 23rd checkup, weird rudder stuff started showing up on the very next flight, only two days before everything went wrong. Earlier than that, the yaw damper didn’t make the rudder pedals move at all. But once the work was done, every time the yaw damper kicked in, the pedals shifted by themselves. Most telling? Every case of Dutch roll popped up exactly when the yaw damper was active. On the flip side, if pilots turned it off mid-air or flew without it using the MEL rules, none of those strange moves happened again.
The NTSB keeps digging into a few big unknowns. One main goal is pinning down exactly when the rudder system got damaged maybe it was already broken before the May 23 repair job, possibly making the yaw damper act up; then again, maybe the fix messed things up instead. They’re also going further into why the yaw damper failed and how directly that led to the Dutch roll. Data pulled from the aircraft’s digital flight recorder should help clarify how bad and how long the problem lasted. But the cockpit voice recorder only holds two hours, so earlier pilot conversations were wiped out, leaving their exact words unclear.
Regulatory response and broader industry implications
Southwest Airlines waited till June 7 to alert the NTSB about what happened on May 25 nearly fifteen days later a gap now under federal review. Instead of acting fast, they held off, drawing scrutiny from authorities tracking such oversights. The FAA pointed out visible harm in their first write-up, working hand-in-hand with investigators and the plane maker. They stressed follow-through would depend strictly on results uncovered during checks. Meanwhile, Southwest confirmed its sharing data as the probe continues forward. As for Boeing, most replies were redirected toward officials or the carrier itself.
This situation comes right after more attention turned to how Boeing builds planes and checks their safety. Although Tim Atkinson once an accident investigator in the UK, now a consultant said that given how much time passed without any mandatory plane checks, it’s likely just an isolated case rather than another big issue for Boeing it still piles onto past problems tied to the 737 MAX models. Think about the deadly Lion Air crash back in 2018 or the Ethiopian Airlines disaster in 2019; there was also the Alaska Airlines door panel rupture from early 2024 along with fresh issues on United flights dealing with stuck rudder controls and veering off runways. Even Boeing pointed out the jet may have gone through strong winds sometime in May 2024 before its last trip, urging airlines to keep up routine inspections when gusts get severe.
While the inquiry moves forward, airlines are waiting for the NTSB’s first update usually out about a month after such events. These results matter because they’ll shed light on how this uncommon Dutch roll happened yet could also shape future upkeep routines or even affect how planes are built or flown. Since trust in flight safety still feels shaky for many travelers, the depth of this government review plays a big role in keeping air transport secure and dependable.
In the end, what happened with Southwest’s 737 MAX 8 and its Dutch roll shows how unusual flight behavior can turn risky if tech issues mix with repair oversights. Though no one got hurt thanks to sharp pilots the plane still suffered heavy damage, which hints at deeper flaws in check-up routines or communication after fixes. Right now, officials are digging into flight logs and service history; their results could point fingers but also help stop repeat problems down the line. More than just this one scare, it highlights why constant care in engineering, servicing planes, and watchdog roles matters so much for keeping flyers confident.
