Runaway Trim: American Eagle Flight’s Emergency

What your instructor never taught you. Continuing your education and learning from others. Flight safety topics and accident/incident discussions.

Moderator: Moderators

John.com
Frequent AvComer
Posts: 643
Joined: Fri Dec 23, 2011 5:34 pm
Closest Airfield: Aeroden
Has liked: 16 times
Been liked: 11 times

Runaway Trim: American Eagle Flight’s Emergency

Unread post by John.com » Sat Nov 09, 2019 6:21 pm

Chilling Air Traffic Control Audio of American Eagle Flight’s Emergency Landing After Runaway Trim


Credit: View from the Wing

On Wednesday American Airlines flight AA4439 from Atlanta to New York LaGuardia, an Embraer ERJ-175 (large regional jet) operated by Republic Airways, suffered runaway trim during climb out. “Runaway trim” became a well-known phenomenon over the last year as it’s associated with both Boeing 737 MAX crashes.

Listening to the air traffic control – the pilots and ATC both did an excellent job – is eerie. Thank goodness everyone made it safely back to Atlanta. They stopped for a visual inspection by emergency crew before returning to gate T11.

These users liked the author John.com for the post (total 2):
Capt. KyleERNIE
John Comley
User avatar
Walter105
Too Tousand
Too Tousand
Posts: 2802
Joined: Mon Dec 14, 2009 10:30 pm
Location: Fourways
Has liked: 17 times
Been liked: 34 times

Re: Runaway Trim: American Eagle Flight’s Emergency

Unread post by Walter105 » Sun Nov 10, 2019 5:56 pm

Pretty crappy callsign, Brickyard....

Well done to the crew, but in the end it seems they just switched out the flight control system to direct law and transferred control to the FO as his controls were seemingly working fine at that point.

Any ERJ175 pilots here that could explain how that would have worked? Why direct law? How come the runaway trim could only affect the captain's controls?
The best place to find a helping hand is at the end of your arm.
Slick
Pre-take off checks
Posts: 85
Joined: Wed Aug 21, 2013 1:11 pm
Closest Airfield: FAOR
Location: Johannesburg
Has liked: 9 times
Been liked: 3 times

Re: Runaway Trim: American Eagle Flight’s Emergency

Unread post by Slick » Mon Nov 11, 2019 9:58 am

Walter105 wrote:
Sun Nov 10, 2019 5:56 pm
Well done to the crew, but in the end it seems they just switched out the flight control system to direct law and transferred control to the FO as his controls were seemingly working fine at that point.

Any ERJ175 pilots here that could explain how that would have worked? Why direct law? How come the runaway trim could only affect the captain's controls?
I feel like they (and us) are assuming that just because they regained control, that they carried out the correct actions to solve the situation. It is quite possible that changing modes and also control, were completely unnecessary. They admitted to the Delta pilot that they didn't action the QRH, and then almost as a side note of their last actions, they mention that they pressed the Pitch System Cutout Buttons which is probably what their memory items and QRH would've told them to do in the first place. I find it highly unlikely that they would've had to go around the QRH (which they didn't action) in order to solve the problem.
User avatar
Zulu01
1k poster
1k poster
Posts: 1290
Joined: Thu Nov 08, 2007 9:23 pm
Closest Airfield: KGSO
Location: KGSO, Greensboro NC , USA
Has liked: 4 times
Been liked: 2 times

Re: Runaway Trim: American Eagle Flight’s Emergency

Unread post by Zulu01 » Mon Nov 18, 2019 7:21 am

Walter105 wrote:
Sun Nov 10, 2019 5:56 pm
Pretty crappy callsign, Brickyard....
Based in Indianapolis, where the speedway is called the Brickyard, because of one yard of bricks in front of pits.
Rick Cockcroft
Former GPL and instructor
PPL
RC Novice
User avatar
Walter105
Too Tousand
Too Tousand
Posts: 2802
Joined: Mon Dec 14, 2009 10:30 pm
Location: Fourways
Has liked: 17 times
Been liked: 34 times

Re: Runaway Trim: American Eagle Flight’s Emergency

Unread post by Walter105 » Mon Nov 18, 2019 9:06 am

Zulu01 wrote:
Mon Nov 18, 2019 7:21 am
Walter105 wrote:
Sun Nov 10, 2019 5:56 pm
Pretty crappy callsign, Brickyard....
Based in Indianapolis, where the speedway is called the Brickyard, because of one yard of bricks in front of pits.
That adds some context thanks. Still a crappy callsign for an airline though.
The best place to find a helping hand is at the end of your arm.
User avatar
Thermalator
1k poster
1k poster
Posts: 1431
Joined: Mon Jun 27, 2005 11:07 pm
Location: Pretoria
Has liked: 8 times
Been liked: 13 times

Re: Runaway Trim: American Eagle Flight’s Emergency

Unread post by Thermalator » Mon Nov 18, 2019 10:21 am

You just had a classic Aviate Navigate Comunicate issue & some twat purporting to help, tells you to read the QRH #-o FO
info junkie
Baggie
Fuelling up
Posts: 34
Joined: Tue Feb 18, 2014 2:41 pm
Closest Airfield: FALA
Location: SA
Has liked: 9 times
Been liked: 3 times

Re: Runaway Trim: American Eagle Flight’s Emergency

Unread post by Baggie » Mon Nov 18, 2019 11:38 am

Walter105 wrote:
Mon Nov 18, 2019 9:06 am
Zulu01 wrote:
Mon Nov 18, 2019 7:21 am
Walter105 wrote:
Sun Nov 10, 2019 5:56 pm
Pretty crappy callsign, Brickyard....
Based in Indianapolis, where the speedway is called the Brickyard, because of one yard of bricks in front of pits.
That adds some context thanks. Still a crappy callsign for an airline though.
IIRC. The speedway track in Indianapolis was originally laid with bricks/cobblestones. When it was upgraded and re-profiled for safety reasons it was decided to leave a 1 yard wide strip of the old brick surface at the start/finish line for nostalgic reasons.

The crappiness of the callsign is in the ear of the listener. There are some others out there as well - “Cactus” springs to mind (Sully’s callsign if I remember correctly.😉
User avatar
Zulu01
1k poster
1k poster
Posts: 1290
Joined: Thu Nov 08, 2007 9:23 pm
Closest Airfield: KGSO
Location: KGSO, Greensboro NC , USA
Has liked: 4 times
Been liked: 2 times

Re: Runaway Trim: American Eagle Flight’s Emergency

Unread post by Zulu01 » Mon Nov 18, 2019 5:38 pm

Baggie wrote:
Mon Nov 18, 2019 11:38 am
Walter105 wrote:
Mon Nov 18, 2019 9:06 am
Zulu01 wrote:
Mon Nov 18, 2019 7:21 am


Based in Indianapolis, where the speedway is called the Brickyard, because of one yard of bricks in front of pits.
That adds some context thanks. Still a crappy callsign for an airline though.
IIRC. The speedway track in Indianapolis was originally laid with bricks/cobblestones. When it was upgraded and re-profiled for safety reasons it was decided to leave a 1 yard wide strip of the old brick surface at the start/finish line for nostalgic reasons.

The crappiness of the callsign is in the ear of the listener. There are some others out there as well - “Cactus” springs to mind (Sully’s callsign if I remember correctly.😉
Cactus was the call sign for American West , and later US Air based out of Phoenix Az 😂
When they merged with American Airlines , the call sign became American
Rick Cockcroft
Former GPL and instructor
PPL
RC Novice
User avatar
Walter105
Too Tousand
Too Tousand
Posts: 2802
Joined: Mon Dec 14, 2009 10:30 pm
Location: Fourways
Has liked: 17 times
Been liked: 34 times

Re: Runaway Trim: American Eagle Flight’s Emergency

Unread post by Walter105 » Mon Nov 18, 2019 10:36 pm

IINM ValuJet used to have callsign Critter. :)

Back to my original question though...
The best place to find a helping hand is at the end of your arm.

Return to “Academy & Flight Safety”