musapapaya
Topic Author
Posts: 1004
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Two BA 787 Steering Issues In A Day

Mon Sep 21, 2015 6:12 pm

Hello all

I noticed on http://www.thebasource.com/ today that there are two 787s delayed at least overnight in Chengdu and Montreal due to steering issue.

They may be coincident but failing two of BA's 787 fleet in a single day is.... weird?

regards
musapapaya
Lufthansa Group of Airlines
 
Gazdon121
Posts: 531
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RE: Two BA 787 Steering Issues In A Day

Mon Sep 21, 2015 9:20 pm

Wow and such a small fleet of them at the moment that is just bad luck
 
usairways85
Posts: 4059
Joined: Fri Nov 16, 2001 11:59 am

RE: Two BA 787 Steering Issues In A Day

Mon Sep 21, 2015 10:19 pm

Looks like BA069 LHR-PHL was cancelled today as a result.
 
pokfur
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Joined: Sat Aug 03, 2013 2:35 pm

RE: Two BA 787 Steering Issues In A Day

Mon Sep 21, 2015 10:57 pm

Wow. I just flew the exact same G-ZBJF from YUL-LHR 3 days ago! Thankfully now I'm jet-lagged at home, waking up at 5am and coincidentally writing a trip report on that very aircraft   

Hope BA gets better luck soon...
 
Androol
Posts: 36
Joined: Mon Nov 10, 2014 5:32 am

RE: Two BA 787 Steering Issues In A Day

Mon Sep 21, 2015 11:53 pm

I was wondering why the BA 787 was here in Chengdu when I was taxiing in last night.
 
SKAirbus
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RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 8:27 am

Yikes... After the incident at LAS I hope there is a review into BA's maintenance procedures. It may have nothing to do with it but still.
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mwhcvt
Posts: 1001
Joined: Sun Oct 05, 2008 2:01 pm

RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 10:38 am

Quoting SKAirbus (Reply 7):

The loss of G-YMMM at LHR had nothing to do with BA Eng. it was caused by a design flaw in the engines and contaminated fuel

It's yet to be proven what the cause of the LAS incident which will more than likely be a hull loss

So I second the poster earlier, you should be so sensationalist
Must think up a new one soon, slow moving brain trying to get into gear ;)
 
roseflyer
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Joined: Fri Feb 13, 2004 9:34 am

RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 11:34 am

Quoting SKAirbus (Reply 5):
Yikes... After the incident at LAS I hope there is a review into BA's maintenance procedures. It may have nothing to do with it but still.

Even the most reliable planes have mechanical delays about 1-2% of the time. I would not be too worried about maintenance delays and cancellations. Significant events like what happened at LAS should be far more rare, but an airplane going out of service because of a mechanical problem is relatively common. On any given day, BA probably has one airplane grounded somewhere. Some larger airlines like United, Delta or American probably have 3 or 4 grounded airplanes at any given time.

I have no idea what is going on with this airplane, but two airplanes getting grounded for the same reason at the same time is often attributed to software loading. It happens on newer airplanes. If steering is the problem, is there runway maintenance or construction going on at an airport that these airplanes both flew to recently?
If you have never designed an airplane part before, let the real designers do the work!
 
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readytotaxi
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RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 1:49 pm

Quoting Androol (Reply 4):
I was wondering why the BA 787 was here in Chengdu when I was taxiing in last night.

Just left,on its way to LHR now due in at 00:42am, busting the cerfew.  
you don't get a second chance to make a first impression!
Growing older, but not up.
 
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MrHMSH
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RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 2:06 pm

Quoting SKAirbus (Reply 5):
Yikes... After the incident at LAS I hope there is a review into BA's maintenance procedures.

No need, sh*t happens. BA's maintenance might not be flawless (a certainty since people are involved) but it's damn good.

Quoting SKAirbus (Reply 5):
It may have nothing to do with it but still.

It doesn't. No need to write 'may have nothing to do with it', there is no link.
 
JAAlbert
Posts: 1978
Joined: Tue Jan 31, 2006 12:43 pm

RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 2:45 pm

What might be the cause of a "nose wheel steering issue?" Is the steering accomplished via hydraulic or electric systems? Does this sort of issue often occur on other aircraft models?

P.S. love that BAsource page! It shows just how many tech issues an airline can face at a given time. Fascinating stuff for amateur airline geeks such as myself!
 
speedbird128
Posts: 1562
Joined: Tue Oct 28, 2003 2:30 am

RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 3:15 pm

Quoting MrHMSH (Reply 11):
there is no link.

Did you complete the investigation already?
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roseflyer
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RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 3:34 pm

Quoting JAAlbert (Reply 12):
What might be the cause of a "nose wheel steering issue?" Is the steering accomplished via hydraulic or electric systems? Does this sort of issue often occur on other aircraft models?

Steering is commanded via the rudder pedals or steering tiller. This goes through the fly by wire control system. The signal then gets transmitted to a steering metering system that regulates hydraulic pressure between two nose gear steering actuators on the gear. The steering actuators rotate the nose wheel. There could be problems in the control system, hydraulic system or mechanical linkages. There also could be strut problems or tire problems. Occasionally there are problems with proximity sensors or the hydraulic bypass/override that allows the wheel to gear to rotate when being towed. The system is not particularly complex, but there are quite a few parts interfacing with each other. Steering is usually not a top delay cause, but on occasion there are issues. None of this is unique to the 787.
If you have never designed an airplane part before, let the real designers do the work!
 
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readytotaxi
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Joined: Mon Dec 11, 2006 2:09 am

RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 3:55 pm

Quoting JAAlbert (Reply 12):
P.S. love that BAsource page!

Imagine how much fun if there were a DL,AA,UA Source.   
you don't get a second chance to make a first impression!
Growing older, but not up.
 
airways45
Posts: 282
Joined: Wed May 10, 2000 1:26 am

RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 4:12 pm

Regarding BA's maintenance practices, their engines are maintained by the OEM (GE90 by GE in Wales and the Trent 800s by Rolls-Royce under TotalCare).

The 787s are under warranty and are supported by the rotable OEMs and Boeing's GoldCare maintenance product.

In otherwords they've chosen the OEM for their maintenance. You can hardly say they've gone rogue...
 
anjin
Posts: 70
Joined: Thu Jul 06, 2006 11:49 pm

RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 4:41 pm

Quoting SKAirbus (Reply 5):
Yikes... After the incident at LAS I hope there is a review into BA's maintenance procedures. It may have nothing to do with it but still.

SK Airbus
Ill informed comment is that put to you nicely enough.
 
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eisenbach
Posts: 187
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RE: Two BA 787 Steering Issues In A Day

Tue Sep 22, 2015 11:20 pm

I heard from a 787 pilot that at their airline they haven been told not to taxi careful and not to use full rudder/tiller as this seems to be a common glitch. But I don't now any numbers how often this happened at this airline.
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