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re: Major airline disaster in South Korea, plane crashes with 181 passengers aboard...

Posted on 12/28/24 at 11:02 pm to
Posted by aileron
H-Town
Member since Apr 2018
246 posts
Posted on 12/28/24 at 11:02 pm to
quote:

complete hydraulics failure then they were flaps zero.


Didn't see flaps down either but FYI, alternate flap extension is electrical...no need for hydraulics.
Posted by imjustafatkid
Alabama
Member since Dec 2011
61938 posts
Posted on 12/28/24 at 11:03 pm to
quote:

Boeing isn’t the only manufacturer that has accidents


In reality, there is no comparison between the two events. One was a natural occurrence and the pilot was able to save everyone.

The other MAY have started as a natural occurrence, but landing gear failing this badly is either pilot error or a manufacturer issue.
Posted by 0x15E
Outer Space
Member since Sep 2020
14735 posts
Posted on 12/28/24 at 11:07 pm to
quote:

The other MAY have started as a natural occurrence, but landing gear failing this badly is either pilot error or a manufacturer issue.


Thanks for proving my point
Posted by aileron
H-Town
Member since Apr 2018
246 posts
Posted on 12/28/24 at 11:09 pm to
quote:

Looks like they lost the ability to lower the gear for landing and landed going very fast which suggests hydraulic failure.


Alternate gear extension is a gravity drop. No need for hydraulics to extend the gear. A bird strike could have damaged the nose gear doors in such a way to prevent the extension. The main gear on the 737 doesn't have doors.
Posted by SWLA92
SWLA
Member since Feb 2015
4379 posts
Posted on 12/28/24 at 11:12 pm to
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Looks like the right engine is what took the bird strike
Posted by 0x15E
Outer Space
Member since Sep 2020
14735 posts
Posted on 12/28/24 at 11:12 pm to
quote:

alternate flap extension is electrical...no need for hydraulics.


But as another poster stated, only to 15-degrees. I’m not well-versed on flap speed range for 15-degrees but it seems as if it wasn’t enough to really slow them down.
Posted by OchoDedos
Republic of Texas
Member since Oct 2014
39083 posts
Posted on 12/28/24 at 11:17 pm to
I think we should take Occam's Razor to heart when discussing Korean airlines and Korean pilots. Korean's are the God's of CFIT. They possess an unholy talent for destroying perfectly fine aircraft.
Posted by The Boat
Member since Oct 2008
175311 posts
Posted on 12/28/24 at 11:19 pm to
quote:

I think we should take Occam's Razor to heart when discussing Korean airlines and Korean pilots. Korean's are the God's of CFIT. They possess an unholy talent for destroying perfectly fine aircraft.

People got mad when I said Asian pilot error.
Posted by dnm3305
Member since Feb 2009
15757 posts
Posted on 12/28/24 at 11:24 pm to
quote:

Apparent hydraulic failure of the landing gear due to a bird strike.


Ohh sure, sureee.

The one that went down over Kazakhstan was a “bird strike” as well.
Posted by beebefootballfan
Member since Mar 2011
20289 posts
Posted on 12/28/24 at 11:26 pm to
Posted by RedFoxx
New Orleans, LA
Member since Jan 2009
6587 posts
Posted on 12/28/24 at 11:29 pm to
quote:

beebefootballfan


That air Canada (regional affiliate not AC) aircraft is a Dash 8, they’ve had landing gear problems since they came off the assembly line.
Posted by 0x15E
Outer Space
Member since Sep 2020
14735 posts
Posted on 12/28/24 at 11:33 pm to
quote:

Air Canada flight 2259 lands with broken landing gear mere hours after a BOEING 737 crashes in South Korea


ACA2259 is a *checks notes*

de Havilland Dash 8-400



How can this be???
Posted by BRIllini07
Baton Rouge, LA
Member since Feb 2015
3176 posts
Posted on 12/28/24 at 11:39 pm to
Pilots forum discussion on the topic:

PPRuNe

Posted by aileron
H-Town
Member since Apr 2018
246 posts
Posted on 12/28/24 at 11:46 pm to
quote:

I’m not well-versed on flap speed range for 15-degrees


For the 737-800 flaps 15 airspeed limit is 200kts. Compare that to 162kts for flaps 40 and 250kts for flaps 1.
Posted by 0x15E
Outer Space
Member since Sep 2020
14735 posts
Posted on 12/28/24 at 11:55 pm to
quote:

For the 737-800 flaps 15 airspeed limit is 200kts. Compare that to 162kts for flaps 40 and 250kts for flaps 1.


How slow could they have theoretically flown that approach with flaps 15?
This post was edited on 12/28/24 at 11:57 pm
Posted by SWLA92
SWLA
Member since Feb 2015
4379 posts
Posted on 12/28/24 at 11:57 pm to
LINK
Very similar situation with this plane crash. Belly land after a go around with only 2 survivors
This post was edited on 12/28/24 at 11:59 pm
Posted by Old Money
LSU
Member since Sep 2012
40885 posts
Posted on 12/28/24 at 11:58 pm to
quote:

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God damn so many events this week.
Posted by aileron
H-Town
Member since Apr 2018
246 posts
Posted on 12/28/24 at 11:58 pm to
quote:

Are those bottom range numbers? 


Upper limit. Slowest speed is the stall speed.
Posted by jcaz
Laffy
Member since Aug 2014
18614 posts
Posted on 12/29/24 at 12:13 am to
A lot going on here. Gonna wait for blancolirio’s take.
Posted by Finnish
Member since Nov 2021
764 posts
Posted on 12/29/24 at 12:15 am to
quote:

For the 737-800 flaps 15 airspeed limit is 200kts. Compare that to 162kts for flaps 40 and 250kts for flaps 1.


quote:

aileron


Checks out
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