Door Boeing 737 pre-MAX opens after takeoff, aircraft returns in safety

https://www.luchtvaartnieuws.nl/nieuws/categorie/2/airlines/deur-van-transavia-toestel-vorige-maand-stukje-opengegaan-tijdens-opstijgen

by j-a-a-p • 2 years ago

43 22 2 years ago

luchtvaartnieuws.nl

progbits• 2 years ago

There is no connection whatsoever with the door plug problem of the 737 MAX 9: in this case it concerns a 737 of the previous generation, where the door was not properly closed airtight before departure.

(Machine translated from the linked article)

amarant2• 2 years ago

Seems Boeing just can't catch a break lately.

I'm somewhat surprised that there isn't a warning in the cockpit for a poorly closed door on an airplane. My car warns me of that! (Granted, my car door isn't necessarily airtight, but still)

dmitrygr2• 2 years ago

I'm somewhat surprised that there isn't a warning in the cockpit for a poorly closed door on an airplane.

There are multiple. In the 737NG, for example, you'd expect the "master caution" light to come on, an audible chime, and an indicator "DOORS"

You can see this yourself in the flight crew operations manual: https://www.pilot18.com/wp-content/uploads/2017/01/B-737-7-8...

see page 15.10.1. (pdf page 1793)

The details on the meaning of this light are on page 15.20.4 (pdf page 1812)

uomo• 2 years ago

That’s interesting. In the article it says:

According to De Telegraaf, no signal would have come through in the cockpit before departure that the door was not closed properly.

amarant2• 2 years ago

Interesting! I guess that leaves 2 possibilities. Either the pilots ignored/missed the warnings(seems unlikely), or the warning system was somehow faulty(seems more likely, given Boeings recent track record)

sjaak• 2 years ago

Key bit from the article translated:

There is no connection to recent problem with the 737 MAX 9 where a door plug was not installed correctly. Instead, this occurred on an older (previous generation) 737 airplane. The cause of this incident is that the door had not been closed properly prior to take-off.

(original Dutch: "Er is geen enkel verband met de deurplugproblematiek van de 737 MAX 9: het gaat in dit geval om een 737 van de vorige generatie, waarbij de deur voor vertrek niet goed luchtdicht was afgesloten.")

dkjaudyeqooe3• 2 years ago

They say that, but the doors are closed, cross checked and then the pilots would be alerted by a sensor if a door is open.

So did three or four members of staff get this simple thing wrong or is the plane at fault?

creshal• 2 years ago

Are the door sensors redundant on the 737, or do the crew and pilot just check different readouts of the same?

littlestymaar4• 2 years ago

How can a plane take off if the door isn't properly closed? How isn't there a detector, and a mechanism that just prevent the plane to even move if the door isn't closed. That's what trains do (and the earlier iteration of this design in train is decades old and really basic: on old trains there's a wire running through all doors which are acting as switches mounted in serial: if one is open, there's no current)

JoshTriplett2• 2 years ago

On trains, "stop" is generally a safe action. On planes in the air, "stop" is a deadly action.

As described, that sounds like a mechanism that could potentially go very wrong on a plane. By way of example, consider if the plane was in flight and a door opened: the pilots need full control of the plane in order to land it.

There should absolutely be mechanisms to detect and avoid this situation, but hard interlocks like you're describing could cause catastrophic failures in flight.

aydyn• 2 years ago

This response is incredibly dramaphobic. I want to hear more anti-Boeing screeds.

CafeRacer• 2 years ago

Ah, here we go again :-D

xp84• 2 years ago

Only going from the translation, this seems more likely to be a maintenance issue or crew error than another shocking quality problem, since I believe the 737-800 and -700s that they fly haven't been manufactured since at latest 2020, and their average age of their (Transavia's) 737 fleet is 13 years.

As disappointing as it was watching the recent Wendover video breaking down the Boeing decline, this is probably not part of the story.

Aeolun• 2 years ago

This is such a weird way to write this: Bij het opstijgen van een Transavia-vlucht is vorige maand een deur van het toestel een beetje opengegaan

Duing ascent of the Transavia flight, the door of the airplane opened a little bit (emphasis mine).

What the hell, how does the door on your airplane open ‘a little bit’?

Door Boeing 737 pre-MAX opens after takeoff, aircraft returns in safety

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