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Boeing757100
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FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Mon May 17, 2021 1:20 pm

https://www.reuters.com/business/aerosp ... 021-05-14/


On Friday, May 14, the FAA said it was to inspect 143 737 Classics operated by US airlines. An airworthiness directive was issued to ensure that the flap synchro wire, which plays part in controlling the autothrottle, is safely connected to a sensor. Any disconnection of the wire could go undetected by the autothrottle system and could pose a safety risk. Suspicion started to arise after the Sriwijaya crash a few months ago.

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orlandocfi
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Mon May 17, 2021 1:53 pm

SJ182 took off into an area of thunderstorms and crashed, but this wire is what they find suspicious? I’m not trying to defend Boeing, but it feels like the world is bending over backwards to exonerate crews that made fatal errors by blaming the automation.
 
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Aesma
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Mon May 17, 2021 1:59 pm

It's the Swiss cheese again. Without the crew reaction to the issue (non reaction rather) the crash wouldn't have happened. Without the A/T malfunction, the crash wouldn't have happened. Shouldn't we try to plug as many holes as possible ?
New Technology is the name we give to stuff that doesn't work yet. Douglas Adams
 
orlandocfi
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Mon May 17, 2021 2:50 pm

Aesma wrote:
It's the Swiss cheese again. Without the crew reaction to the issue (non reaction rather) the crash wouldn't have happened. Without the A/T malfunction, the crash wouldn't have happened. Shouldn't we try to plug as many holes as possible ?


If only aircraft systems worked perfectly 100% of the time. The Swiss cheese of aviation is mostly hole and very little actual cheese. The pilots are too often called upon to fill those holes.
 
Vicenza
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Mon May 17, 2021 3:03 pm

orlandocfi wrote:
SJ182 took off into an area of thunderstorms and crashed, but this wire is what they find suspicious? I’m not trying to defend Boeing, but it feels like the world is bending over backwards to exonerate crews that made fatal errors by blaming the automation.


A fault in automation systems has a very high potential of causing crews to make fatal errors.
 
737max8
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Mon May 17, 2021 4:34 pm

Who is still flying 737 CL in the USA? Alaska still have any 400s?
The thoughts and opinions expressed in my comments do not represent that of any airline or affiliate.
Flown on: 717 733 734 735 736 737 738 739 7M8 744 744ER 752 753 762 763 772 773ER 788 789 A220 A319/20/21 A332 A333 A339 A343 A346 A359 A388
 
FX1816
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Mon May 17, 2021 5:01 pm

737max8 wrote:
Who is still flying 737 CL in the USA? Alaska still have any 400s?


Not Alaska, they retired them a few years back. iAero (formerly Swift Air) and Sierra Pacific come to mind as the only ones carrying people. iAero, Mesa, Kalitta Charters II, Aloha Cargo and Northern Air Cargo are all flying -300's and -400's as freighters.
 
CRJockey
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Mon May 17, 2021 5:56 pm

orlandocfi wrote:
Aesma wrote:
It's the Swiss cheese again. Without the crew reaction to the issue (non reaction rather) the crash wouldn't have happened. Without the A/T malfunction, the crash wouldn't have happened. Shouldn't we try to plug as many holes as possible ?


If only aircraft systems worked perfectly 100% of the time. The Swiss cheese of aviation is mostly hole and very little actual cheese. The pilots are too often called upon to fill those holes.


Where are you flying? Mozambique? In hundreds and hundreds of flights I had to fill holes for the automation like five times.
 
m007j
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Mon May 17, 2021 10:34 pm

737max8 wrote:
Who is still flying 737 CL in the USA? Alaska still have any 400s?


iAero Airways (formerly Swift) has a bunch. IIRC Alaska has gotten rid of all of their classics.
 
WIederling
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Tue May 18, 2021 6:33 am

orlandocfi wrote:
SJ182 took off into an area of thunderstorms and crashed, but this wire is what they find suspicious? I’m not trying to defend Boeing, but it feels like the world is bending over backwards to exonerate crews that made fatal errors by blaming the automation.


Have you had a look into REALITY?

Not taking the "crew made fatal errors" as sole cause lock stock and barrel
is not "bending over backwards to blame Boeing."
Murphy is an optimist
 
orlandocfi
Posts: 132
Joined: Mon Nov 23, 2020 12:53 am

Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Tue May 18, 2021 12:11 pm

WIederling wrote:
orlandocfi wrote:
SJ182 took off into an area of thunderstorms and crashed, but this wire is what they find suspicious? I’m not trying to defend Boeing, but it feels like the world is bending over backwards to exonerate crews that made fatal errors by blaming the automation.


Have you had a look into REALITY?

Not taking the "crew made fatal errors" as sole cause lock stock and barrel
is not "bending over backwards to blame Boeing."


You use quotations yet you’re misquoting me. Either you don’t understand what I’m saying, or you’re intentionally twisting my words. The REALITY is that there’s plenty of blame to go around for recent accidents. I feel that some countries do not want to take responsibility for their poor aviation safety cultures and instead blame the machine rather than address the human factors involved.
 
737max8
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Tue May 18, 2021 1:41 pm

FX1816 wrote:
737max8 wrote:
Who is still flying 737 CL in the USA? Alaska still have any 400s?


Not Alaska, they retired them a few years back. iAero (formerly Swift Air) and Sierra Pacific come to mind as the only ones carrying people. iAero, Mesa, Kalitta Charters II, Aloha Cargo and Northern Air Cargo are all flying -300's and -400's as freighters.


Thanks for the info, I think AS was the last time I flew a classic.
The thoughts and opinions expressed in my comments do not represent that of any airline or affiliate.
Flown on: 717 733 734 735 736 737 738 739 7M8 744 744ER 752 753 762 763 772 773ER 788 789 A220 A319/20/21 A332 A333 A339 A343 A346 A359 A388
 
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Aesma
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Tue May 18, 2021 2:32 pm

When the 737 had its rudder issues, some pilots made it, some crashed. Surely the aircraft didn't need any improvement, just train pilots better ? Same for the MCAS ?
New Technology is the name we give to stuff that doesn't work yet. Douglas Adams
 
N1120A
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Re: FAA putting inspections on 737-300, -400, and -500 Autothrottle wiring

Tue May 18, 2021 7:40 pm

This was almost certainly the result of the crew not identifying a fault and hand flying the aircraft, being over reliant on automation. Fly the airplane.
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