There’s a story that’s going viral about how a United Airlines flight that had diverted to Washington Dulles returned to its gate at 3AM after taxiing out to the runway, as the pilot had reportedly exceeded his maximum duty time for the day by just one minute. Obviously this is incredibly frustrating, but is there a little more to the story?
United flight diverts, then cancels at 3AM after pilot times out
ESPN sports commentator Ian Darke and former soccer player Landon Donovan recently took to X to share their frustration over what happened on a recent United Airlines flight, in posts that have now collectively been viewed many millions of times. Specifically, this involves flight UA404, which was scheduled to operate from Houston (IAH) to Newark (EWR).
Darke took to social media to write the following:
Every passenger on @united 404 from Houston to Newark will think twice about using that airline again. Delayed , diverted , reboarded, then pilot says shift ‘ timed out’ as about to take off from Dulles. Still there 5 hours later. No hotel offer.
Meanwhile Donovan wrote the following:
I’ve been traveling 100k miles/year since I was 16 and this was easily the worst travel experience of my life. No transparency, no clarity and no respect for the passengers who were treated horribly all evening/morning. Absolutely shameful from @united
When someone else pointed out how the United States has rules limiting pilot duty hours, he responded as follows:
We were on the runway about to takeoff and the pilot was literally ONE minute past his time and decided to take us back to the gate at 3am
For some context, the 1,400-mile flight was blocked at 3hr42min, and was scheduled to depart at 6:17PM and arrive at 10:59PM, being operated by a Boeing 737 MAX 9 with the registration code N17589. The plane only ended up taking off from Houston at 8:17PM, and then made its way toward Newark.
However, due to bad weather at Newark, the plane ended up having to divert to Washington Dulles (IAD), where it landed at 1:04AM.
At that point the plane refueled, only for them to attempt to depart again. Based on what I can see, the plane left the gate at 2:48AM, only to then be back at the gate 28 minutes later, at 3:16AM. The plane indeed make it out as far as the runway (though I’m not sure it actually entered the runway), before turning around, with the claim being that the pilot was at that point one minute over the maximum duty period. The one minute claim is according to the passenger, but hasn’t been verified by the airline. I would guess this didn’t actually come down to one minute.
At that point the flight was canceled for the night, and then United operated a flight to Newark in the morning, departing at 9:23AM and arriving at 10:05AM. So for the passengers who ended up taking the replacement flight, they were over 11 hours late, and had a sleepless (or at least very short) night.
It’s hard to be too mad at the airline here… right?
Of course as a passenger, it’s incredibly frustrating to be on a flight that diverts, is seriously delayed, and then even gets canceled because the pilot times out. But at the same time, safety is paramount in aviation, and there’s a certain point at which crews will time out.
The Federal Aviation Administration (FAA) has strict rules around maximum duty days, which are covered in 14 CFR Part 117.
Here’s the part of the story that I find the most interesting, though. In my experience, if a flight cancels due to pilots exceeding their maximum duty period, it typically happens before the aircraft door closes. Over the years I’ve been on many flights where they rush to close the door, because there’s a certain cutoff after which the crew will time out, and closing the door typically solves that.
So what’s going on here? Let me start by stating that I absolutely support pilots only flying if they feel they’re capable of doing so safely, and have sufficient rest. Even if it’s inconvenient, I respect their rights to make operational decisions, including timing out.
That being said (not that it’s of any consequence), I think the interesting question is whether the pilot had no choice in the matter, or whether he opted not to continue. After all, the X post frames this as the pilot “deciding” to return to the gate.
One wonders, what happened between the time that the plane left the gate, and the time that it got to the runway, that caused something to be missed by one minute? The taxi didn’t take particularly long.
Ultimately there are many factors that determine maximum duty days for pilots — we don’t know where the pilot had come from that day, what his flying looked like in previous days, what his report time was, etc., as that all impacts maximum duty times.
It’s the timing I find curious here, so I looked at 14 CFR Part 117. As I understand it, risk of going over duty time is typically measured based on the time the door closes, plus the anticipated flight time. But what happens once the plane leaves the gate? Well, here’s the section that covers flight duty period extensions before takeoff:
For augmented and unaugmented operations, if unforeseen operational circumstances arise prior to takeoff:
(1) The pilot in command and the certificate holder may extend the maximum flight duty period permitted in Tables B or C of this part up to 2 hours. The pilot in command and the certificate holder may also extend the maximum combined flight duty period and reserve availability period limits specified in § 117.21(c)(3) and (4) of this part up to 2 hours.
(2) An extension in the flight duty period under paragraph (a)(1) of this section of more than 30 minutes may occur only once prior to receiving a rest period described in § 117.25(b).
(3) A flight duty period cannot be extended under paragraph (a)(1) of this section if it causes a flightcrew member to exceed the cumulative flight duty period limits specified in 117.23(c).
(4) Each certificate holder must report to the Administrator within 10 days any flight duty period that exceeded the maximum flight duty period permitted in Tables B or C of this part by more than 30 minutes.
As you can see, after the door closed, pilots can extend their duty period by up to two hours, with some limitations. Presumably if the door had been closed, that extension would’ve kicked in, if the pilots wanted it to.
It does seem like the pilots may not have been “feeling it” at that point, and just wanted to go back to the gate, unless I’m reading that wrong. Now, let me emphasize:
- I don’t think there’s anything wrong with that, and you want pilots who are ultimately well rested, and if they’re not comfortable flying, they’re making the right decision by taking everyone back to the gate
- The above is in reference to FAA regulations, though it’s possible that United’s pilot contract contains extra provisions
So anyway, at a minimum, I find this to be an unusual case of exceeding maximum duty limits.
Bottom line
Passengers on a United Airlines flight from Houston to Newark had quite the journey, when the plane diverted to Washington Dulles due to bad weather at the destination. The plane then refueled, and ended up taxiing out to the runway at 3AM… only for the plane to then return to the gate, as the pilot was reportedly one minute over the maximum duty period.
Pilot fatigue is a real issue, and pilots should absolutely prioritize safety over all else. I suspect the plane wasn’t actually on the runway, and I also suspect this didn’t just come down to one minute. Still, it’s definitely unusual to see a crew time out after leaving the gate, especially without a substantial initial delay. If anyone has any more insights into the technicalities of this, I’d love to hear them (just due to my own curiosity, and not because it’s actually consequential).
What do you make of this story of a United pilot timing out?