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#around#pilots#down#pilot#air#runway#pressure#speed#https#avoid

Discussion (49 Comments)Read Original on HackerNews

cameldrv•7 minutes ago
They made a whole song about this

https://www.youtube.com/watch?v=Ccq30minme8

imglorp•about 2 hours ago
tldw, per Blancolirio: unstable approach, crew should have done a go around at 1000 agl but did not attempt one until it was too late, then aborted the go around.
wanderingmoose•about 1 hour ago
I think the real question is why didn't the pilots do a go around. I bet there are underlying pressures from the airlines and/or amazon to not do a go around to avoid schedule delays or fuel costs.
dghlsakjg•43 minutes ago
I've never heard of anything even close to this.

Airlines in the US do not pressure pilots to avoid go arounds. Pilots in the US do not delegate life or death decisions to ops, especially since the FAA legally holds them accountable for that. All pilots are aware that they are responsible for the decision to go around or not.

Any airline found to be pressuring pilots to avoid go arounds would be in a world of pain with the FAA.

On cargo flights in particular timing and fuel usage are less critical than passenger flights, and a go around doesn't affect either much.

Pressure to avoid go arounds would also be incredibly counter productive since go arounds exist to preserve life and property. Pilots do go arounds to avoid costly incidents.

You are correct that the question is why they didn't do a go around, but I would bet a large sum of money that airline pressure to avoid go arounds was not a factor.

ElProlactin•24 minutes ago
https://www.cbsnews.com/news/miami-plane-crash-21-air-safety...

> The Amazon Prime Air Boeing 767 cargo plane that crashed off a Miami runway on Sunday, killing five people, was operated by a North Carolina company that has been accused by past employees of violating safety regulations, legal documents reveal.

There's a lot in the article, but this allegation is worth highlighting:

> Seuring's attorney, Michael Anello, told the judge that another 21 Air pilot, Johnny Salmonson, "was being pressured to fly in periods of time that were too short to comply with the proper amounts of rest, and that implicated safety. The layovers were too short."

jtchang•34 minutes ago
Southwest airlines had a culture of turning around fast at the gate. So maybe no explicit policy but culture can drive unintended consequences and decisions.
cucumber3732842•17 minutes ago
>Airlines in the US do not pressure pilots to avoid go arounds. Pilots in the US do not delegate life or death decisions to ops,

Construction companies in the US do not pressure employees to get shit done. Construction workers do not delegate the decisions to work in sketchy circumstances, especially since OSHA holds them accountable for all that.

See how silly that sounds?

They cook up the rules to be all compliant and whatnot and then everyone breaks them a little pretty often and in tasteful ways in order to actually get the job done. If you get caught or screw up, it's on you.

I assume this sort of pressure happens a lot less with pilots because of the cost of screw ups but there's still probably some implied pressure there.

randerson•44 minutes ago
In one of the videos you can see dark clouds behind the plane. I suspect the pilots knew they'd have to divert to a different airport if they couldn't land and put pressure on themselves to not have to do that.
jmward01•32 minutes ago
I suspect the pilots knew it wasn't a great approach but it just didn't click how bad it was. They just felt committed to the approach and thought they could 'fix it' without realizing how bad things really were. Having good enough situational awareness that you wave off when you are supposed to generally means that you also aren't wildly off speed/other parameters. They clearly had lost situational awareness.

The thing that amazes me about this is the timeline here:

00:30 The nose and right main gear touched down at a groundspeed of 158 knots.

...

00:19 The left main gear touched down at a groundspeed of 134 knots.

00:15 A pilot called for a go-around.

11 seconds and 24 knots after the nose touched down and then the left main finally also touched down? Wow. Then 4 seconds after all that the go-around. It is one thing to hold the nose off for that long, but a main mount?!

cadre_78•about 1 hour ago
Bingo.
pseudosavant•about 1 hour ago
Could a company that won't let delivery drivers stop to pee possibly be pushing their pilots that hard? Yes. Yes, they could.
bayarearefugee•43 minutes ago
Jeff Bezos must have every dollar to pay for his wife's grotesque plastic surgery Mar-a-Lago face.

If people die in the process, that's regrettable but its a sacrifice he is willing to make.

Twirrim•34 minutes ago
The branding on the plane is Prime Air, but it's not actually Amazon owned and run. Instead it's a cargo airline (21 Air) that they contract with to operate cargo flights with Prime Air livery on the planes.

It'll be interesting to see the outcome of the NTSB investigation, they're usually quite thorough.

bdamm•about 2 hours ago
The "hazardous attitudes" study in this report will be gold.
cyanydeez•about 1 hour ago
"Capitalism caused this crash"
baggy_trough•21 minutes ago
Obligatory Blancolirio link: https://youtu.be/dcf7n0T3D9c
sscaryterry•about 1 hour ago
Yep, its also the most intuitive way to reason about it when you look at the data. Unfortunately, a bad call. I'm sure many of us would have made the same mistake.
creato•about 1 hour ago
> I'm sure many of us would have made the same mistake.

From the reporting and commenting on this incident, that is not the impression I'm getting. This wasn't one bad call after getting half way down the runway, this was a continuous stream of bad decision making for the entire approach, with the copilot suggesting the pilot go around too.

Also: this kind of incident is very rare, so obviously, the vast majority of pilots don't make this mistake.

lisper•about 1 hour ago
Private pilot here. No, I'm quite sure very few of you here would have made the same mistake as evidenced by the fact that literally hundreds of thousands of aircraft land successfully every day, many of them under much more adverse conditions. This is not a oh-it-could-have-happened-to-anyone kind of screwup, this is a did-this-guy-really-go-through-basic-pilot-training kind of screwup.
Ancapistani•7 minutes ago
I’m not a manned pilot, but have my part 107 and have spent a few thousand hours flying combat flight sims - ~150kts in a cargo aircraft, four seconds from departing the runway, seems like the worst possible time to abort a touch-and-go. Then consider the numerous automated audio warnings and the copilot suggesting a go-around, and it seems pretty ridiculous to me.

Don’t get me wrong - if I had to land that plane, I’d likely have overrun the runway too. I’m not saying it’s easy, only that it appears to me that they were operating well outside the documented parameters that are the pilot’s responsibility to know.

I just looked it up, and a 767’s Vref is 122-165kts, with Vref at max weight at 144kts. They touched down at 158kts, nose down. The approach was ~35kts over speed, they were above the glide slope, and not bleeding speed fast enough to sink - so they dropped the nose.

From what I can see, they were screwed the moment they touched down - the last moment they had a reasonable opportunity to abort was when they decided to drop the nose and commit instead.

waterTanuki•5 minutes ago
> [01:42] A pilot called for flaps to be set to 20 degrees, and the other pilot cautioned they were too fast. The other pilot made additional comments regarding the aircraft’s excessive speed throughout the remainder of the recording. There was not a consistent verbal response to the comments about speed

The interaction here is eerily similar to the pilot interactions preceding the 1997 Korean Air Flight 801 (B747) disaster in Guam [1]. It's not clear based on the NTSB update if the Captain was ignoring the First Officer or the other way around.

[1]: https://en.wikisource.org/wiki/Korean_Air_Flight_801_-_Aircr...

bradly•about 2 hours ago
> There was no indication in the recorded data that speed brakes or thrust reversers were deployed.

I don't know anything about flying. Is this normal? Doesn't sound like it, but I don't know why the pilots would not have used these things that sound useful.

addaon•about 1 hour ago
Take this with all the salt that random third-party guesses about a still-in-investigation event should be taken with -- think fully salt-cured ham -- but it looks like the landing was with a quartering tail wind, and the upwind (left) gear never really got weight on it; the wheel bogie needs to be straightened by weight against both the front and back wheels to register weight-on-wheel, and the auto-brake systems need positive weight-on-wheels from at least one redundant sensor on each of the three gear to engage. Came down hot, and basically skimmed with one wheel partially off the ground for some, most, or all of the way down the runway, preventing the braking systems from kicking in.
lokar•about 1 hour ago
AIUI, they should never have gotten that far. They should have gone around at 1000 feet.
ajross•about 1 hour ago
> Came down hot

Really that's all that needs to be said at the moment. They had way too much energy[1], which anyone with flight sim or RC experience will recognize as a routine mistake when hand-flying.

The question is why all (all!) the layers of checklists and warnings and process and ATC direction somehow failed in combination to prevent. Yeah, they should have aborted for sure, but they didn't, and we won't know why for a good while yet.

[1] Which can just as easily mean "too high" as "too fast", c.f. the sink rate warnings in the logs which would be consistent with trying to squeeze the airplane down onto the runway. But again we won't know without more data.

ofcrpls•about 1 hour ago
The lack of contact of the left wheels on the ground, which the Weight of Wheel sensor deployment depends on, as in both wheels being grounded, which the auto-speed brakes/thrust reversers depend on, worsened the whole situation as the crew seems to be unaware why they weren't losing speed after they'd 'landed'.

Every single thing they could do wrong at, they did.

bronson•about 1 hour ago
After applying the brakes for 8 seconds, they then went to full throttle to try get back in the air for four more seconds. That's bonkers.
Polizeiposaune•about 1 hour ago
> Every single thing they could do wrong at, they did.

There are just too many ways to screw up for that ever to be the case.

For instance, they could also have been lined up to land on something other than the runway they were cleared to land on -- see Air Canada Flight 759, https://en.wikipedia.org/wiki/Air_Canada_Flight_759, which came within 14 feet of colliding with an aircraft on the taxiway they mistook for the runway..

Onavo•about 2 hours ago
Depending on the plane they need the wheels to have sufficient weight on them first. Also strangely the flaps 30 and flaps 40 call outs do not match.
buildsjets•about 1 hour ago
The Boeing 767 does not have a Flaps 40 setting. The "Forty" callout was an automated annunciation of the radar-altimeter measured altitude above the runway.
teravor•about 1 hour ago
apparently they weren't even properly configured until almost touching down.
Neywiny•about 1 hour ago
I've been watching the Flying for Money videos on this. He has interesting insight. It's a bit disappointing he just threw the data into an LLM for processing since it doesn't seem that hard to process, but otherwise he's been pretty good at bringing up likely possibilities based on Occam's razor. Mostly around negligence and most recently about junior vs senior pilot shyness vs ego.

What I don't understand from his analysis though was early on he said the tail wind increased a minute before landing which is too quick to have communicated. If that's true, we need to get better about this. A minute to send a message is ages. It should be automatic between the airport and the aircraft.

toomuchtodo•about 1 hour ago
Related:

Prime Air crash: 10+ mandatory go-around triggers were ignored [video] - https://news.ycombinator.com/item?id=49650689 - September 2026

https://www.youtube.com/watch?v=Xm6G7EOP5Qc