Alaska Airlines flight forced to make an emergency landing... 82

[SWComposites]

The door was opened in the Boeing Renton plant so that Spirit (or someone) could repair some adjacent fasteners. Boeing is refusing to release who was involved in those operations that happened in their factory. It looks bad.

 

[Murph 9000]

Yeah, while I do think Spirit have at least 50% responsibility for the failure to re-secure the plug after the remedial work, it does seem that there was a failure in Boeing's quality/safety systems which should have been used to properly track all safety critical processes in their factory.

 

[Alistair_Heaton]

Seems they had yet another rudder hard over on the max....

This rudder hard over must have been running nearly 20 years.

 

[3DDave]

Seems like they didn't. They had a case where the pedals didn't move for a short time on the ground.

https://finance.yahoo.com/news/investigators-confirmed-pilots-account-rudder-180808023.html

Not great, but not a "hard over" condition and entirely unrelated to the previous slide-valve problem.

 

[Alistair_Heaton]

Thank goodness for that, it sounds an utter nightmare to deal with.

 

[3DDave]

Thank goodness Airbus hasn't killed anyone with the multiple design iteration to get the nose wheel to actually point forward when lowered for landing.

 

[Alistair_Heaton]

Comes under not my problem

Although I do personally agree with it needs sorted.

Max hard over of a primary flight control is a bit of a different league to burning a tyre out... Especially as the arelions are not power full enough to counter the secondary effects of yaw at full rudder.

But maybe I am being picky

 

[3DDave]

No 737 issues are your problem either.

 

[Alistair_Heaton]

Utter nonsense

The whole of the aviation certification process and down grading is my business. I have to strap my backside into these machines and have to interact with them all on a daily basis.

I have zero desire for a 1 OEM market for hardware.

The NG was an utter abortion of certification never mind the MAX.

 

[MintJulep]

A concise history of the fall of Boeing by Jon Oliver.

https://youtu.be/Q8oCilY4szc?si=7M7KvsR2REb0meVO

 

[3DDave]

Then the Airbus problem is also your problem. Pick a lane, you are weaving.

 

[Alistair_Heaton]

its honestly not.

Its not even classed as a major.

I am looking about runway removal and diversion. Which it doesn't feature in.

It happens that rarely with zero fatalities its a none event for certification.

Pain in the arse yes.... we carry fuel to deal with these events but as they happen that rarely its a none factor.

 

[3DDave]

It's a pattern of failure through multiple design variations. Why the lack of concern? It hasn't killed anyone, yet.

 

[Alistair_Heaton]

True but I haven't heard of any recently.

I had something similar on the Jetstream41 You don't loose directional control its pretty much a none event apart from the paper work afterwards.

And all AB ones resulted with a modification going through I think I read. No half baked fiddles with operating procedures relying on human intervention to stop it happening again.



Current threats on the A220 is ice ridges on the radar dome causing shitty air to mess with the smart probes.

And inadvertent selection of autopilot on departure. Which is linked to the position of the auto thrust button and Autopilot button. And the auto thrust kicking out due to pilots being ruff putting the levers up or a x wind. They put a firmware through last year which has stopped the xwind issue.

 

[Alistair_Heaton]

ok a mate sent me the link for the safety sense that proper Airbus pilots get on the subject. He flys the A320.

https://safetyfirst.airbus.com/landing-with-nosewheels-at-90-degrees/

And here is the A220 AT issue

https://safetyfirst.airbus.com/inadvertent-autopilot-engagement-during-takeoff-on-a220-aircraft/

 

[Alistair_Heaton]

There is a saying accidents happen in three's but this is getting silly...

BTW this is pilot stupidity.

They wanted to roll to the end

The end is greasy with jet blast from holding aircraft and waiting for TO.

You try and take a corner at 30 knts you slide....

 

[3DDave]

The tower directed the plane to exit at the far end and to keep it snappy, apparently to give the following aircraft more rapid access. Pilot was dumb for following tower request and Tower was dumb for packing them in so tight.

 

[Alistair_Heaton]

100% agree.

I thought the pilots requested roll to the end.

Anything past the touch down markers is greasy.

 

[Alistair_Heaton]

Actually thinking about it.

With it being a geared fan what's the reverse performance difference between a max and the NG like?

I have only ever experienced geared fan reverse. And it's not very awe inspiring compared to a turboprop in beta in full reverse. Which will give you it even when you start reversing back down the runway.

The Pw1500G comes off the thrust at 35knts forward speed.

I can imagine if your used to more performance and it staying producing down to 0 knots ground speed. It would be an understandable human error to get your deceleration distance wrong.

This will be an issue with the A320neo as well in mixed fleets.

 

[JohnRBaker]

It looks like this has just been ratcheted-up one more notch:

DOJ Opens Criminal Investigation Into The Alaska Airlines 737 Plane Blowout, Report Says

The Wall Street Journal reports the Justice Department has launched a criminal investigation into the Boeing jetliner blowout.

https://www.huffpost.com/entry/oreg...inal-investigation_n_65ecec96e4b0dce30d248c95

John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:

The secret of life is not finding someone to live with
It's finding someone you can't live without