HN Explorer

Multiple airplanes landing gear failures in a day

21 points by whatever1 ↗ HN
https://aviationa2z.com/index.php/2024/12/29/jeju-air-boeing-737-crashes-in-south-korea-killing-at-least-47/

https://aviationa2z.com/index.php/2024/12/29/air-canada-plane-crash-land-and-catches-fire/

https://aviationa2z.com/index.php/2024/12/29/klm-boeing-737-skid-off-the-runway-at-oslo-torp/

15 comments

[ 3.3 ms ] story [ 44.0 ms ] thread
Someone
Is that third one (https://aviationa2z.com/index.php/2024/12/29/klm-boeing-737-... landing gear failure?

Neither the description (“The Boeing 737, bearing registration PH-BXM, successfully touched down on the runway but lost control during the landing roll, skidding onto grass terrain adjacent to the taxiway”) nor the video indicates that to me.

daenney
It’s not landing gear failure.

They overshot the runway but that can happen for a variety of reasons. It’s nothing close to the other two.

metalman
Brakes?, blown tire?, stearing failure? other suspension related failure? that plane have thrust reversers? plus any asymetric system failure can be worse than a total failure, especialy with aircraft brakes, as they are used for braking, and stearing during the landing run point bieng, that video cant tell that part of the story
markus_zhang
Does it have anything to do with pilot fatigue due to EoY workload?
siva7
Unlikely, this seems to be a systematic issue around landing gear since a similiar incident by the same airline from the catastrophic incident happened within 24 hours
dv_dt
For events like these I always wish that some background research was included to put the events into historical context. Even something to say x similar events happened in the last year
speedgoose
Some variant of the birthday paradox could perhaps explain the high likelihood of multiple similar events on the same day.
trehalose
I don't think so? There's only 365 birthdays people can have, and nobody's birthday can be changed. Airplanes' landing gears are regularly inspected so that they can be maintained, and replaced if necessary, so that they're not supposed to fail at all. Only if we assume every airplane will eventually suffer a landing gear failure could a birthday paradox apply?
speedgoose
Landing gear issues are pretty common when I check avherald.com, and you have many of them throughout a year. So the likelihood to have two or three of them during the same day is high. Even without considering that traffic is more intense at specific times.

You don’t have to consider all the planes, more all the landing gear issues.

calf
Frequentism prevents Bayesian conditioning on the fact that it is the same airline, same model aircraft, etc.
rurban
2 of them were a Boeing 737-800, just the Canadian not.
loktarogar
AFAIK the Oslo one wasn't landing gear failure, so that makes 1 737-800 (the most common commercial aircraft in the air most of the time) and 1 Dash-8
ipaddr
It looks like a bad software update.