Go Back  PPRuNe Forums > Flight Deck Forums > Tech Log
Reload this Page >

Interesting 787 AD

Wikiposts
Search

Notices
Tech Log The very best in practical technical discussion on the web

Interesting 787 AD

Thread Tools
 
Search this Thread
 
Old 8th April 2019 | 20:52
  #1 (permalink)  
Thread Starter
 
Joined: Feb 2019
Posts: 431
Likes: 0
From: shiny side up
Interesting 787 Airworthiness Directive

Software issues....

This AD is effective March 22, 2019.

We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 787 series airplanes. This AD was prompted by a report of an uncommanded descent and turn that occurred after an inflight switch to the spare flight management function (FMF). This AD requires an inspection of the flight management system (FMS) to determine if certain operational program software (OPS) is installed and installation of new FMS OPS and a software check if necessary. For certain airplanes, this AD also requires concurrent actions. We are issuing this AD to address the unsafe condition on these products.

Last edited by Smythe; 9th April 2019 at 01:48.
Smythe is offline  
Reply
Old 9th April 2019 | 09:41
  #2 (permalink)  
50 Countries Visited
10 Anniversary
 
Joined: Sep 2011
Posts: 352
Likes: 148
From: FL390
Been a BAB for some time now. About time really that it was fixed.
Fursty Ferret is offline  
Reply
Old 9th April 2019 | 10:18
  #3 (permalink)  
25 Anniversary
 
Joined: Jan 2000
Posts: 128
Likes: 0
I’m more concerned about the fact that the engine fire switch might not work. Will try to remember the advice on the fcom bulletin....land at the nearest suitable airport.
Manual Reversion is offline  
Reply
Old 9th April 2019 | 11:22
  #4 (permalink)  
50 Countries Visited
10 Anniversary
 
Joined: Sep 2011
Posts: 352
Likes: 148
From: FL390
GE engines? Not aware of this one...
Fursty Ferret is offline  
Reply
Old 9th April 2019 | 12:58
  #5 (permalink)  
25 Anniversary
 
Joined: Jan 2000
Posts: 128
Likes: 0
Rolls Royce
Manual Reversion is offline  
Reply
Old 10th April 2019 | 06:53
  #6 (permalink)  
15 Anniversary
 
Joined: Dec 2006
Posts: 118
Likes: 1
From: Geneva
GE too. The problem seems to be the rotating fire engine switch... happy not to fly that kind of Boeing
airseb is offline  
Reply
Old 10th April 2019 | 06:58
  #7 (permalink)  
 
Joined: Aug 2007
Posts: 289
Likes: 2
From: The Netherlands
Quote " a report of an uncommanded descent and turn that occurred after an inflight switch to the spare flight management function (FMF)."

... and the pilots just did ye olde "Aviate, Navigate, Communicate thing" so nothing untoward happened and no headlines were made.

For that part of society that happily awaits the future of airliners without pilots, it was a bleak day.
EMIT is offline  
Reply
Old 11th April 2019 | 03:45
  #8 (permalink)  
 
Joined: Jan 2013
Posts: 263
Likes: 0
From: Seattle Area
The fire switch issue is independent of engine type.
Dave Therhino is offline  
Reply
Old 12th April 2019 | 17:15
  #9 (permalink)  
Thread Starter
 
Joined: Feb 2019
Posts: 431
Likes: 0
From: shiny side up
... and the pilots just did ye olde "Aviate, Navigate, Communicate thing" so nothing untoward happened and no headlines were made.
yes, but they lost 4000 feet during the adventure...plenty of places where that would not be a good thing?

uncommanded functions by the FMS are a bit more than the ANC thing.

Last edited by Smythe; 12th April 2019 at 17:29.
Smythe is offline  
Reply
Old 13th April 2019 | 06:18
  #10 (permalink)  
 
Joined: Aug 2007
Posts: 289
Likes: 2
From: The Netherlands
Reality

Originally Posted by Smythe
yes, but they lost 4000 feet during the adventure...plenty of places where that would not be a good thing?

uncommanded functions by the FMS are a bit more than the ANC thing.
No, everything was picked up within some 200 ft and max 20 degrees of heading change.
EMIT is offline  
Reply
Old 13th April 2019 | 13:24
  #11 (permalink)  
PJ2
20 Anniversary
 
Joined: Mar 2003
Aviation Qualifications: ATPL
Posts: 2,558
Likes: 155
From: BC
FAA B787 AD
http://rgl.faa.gov/Regulatory_and_Gu...2019-01-04.pdf
PJ2 is offline  
Reply
Old 14th April 2019 | 23:21
  #12 (permalink)  
25 Anniversary
 
Joined: Jul 2000
Posts: 351
Likes: 0
From: Nirvana..HAHA..just kidding but,if you can tell me where it is!
As you say,with the Fire Switch bulletin still current..the descend and turn manoeuvre may be highly appropriate!!!
Yaw String is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.