Airblue down near Islamabad
Been said before but to turn the HDG knob long-way round to the left, past the 6 O'clock, and then have the AFGS turn shortest way to it when HDG is pulled, is illogical.
Why did the pilot turn the HDG bug to the left in the first place? Why does any pilot turn a HDG knob all the way around, past the 6o'clock? Because that's the direction he wanted to turn. When he finally realised his error and pulled, the aircraft went the other way, straight into the hills they would have (just) missed had it turned left when he belatedly pulled.
And another thing...the captain did the right thing eventually; he disconnected the AP when it wasn't doing what he wanted (it turning right instead of left). Unfortunately, he was unable to manually control the aircraft after that. Automation dependency strikes again?
Why did the pilot turn the HDG bug to the left in the first place? Why does any pilot turn a HDG knob all the way around, past the 6o'clock? Because that's the direction he wanted to turn. When he finally realised his error and pulled, the aircraft went the other way, straight into the hills they would have (just) missed had it turned left when he belatedly pulled.
And another thing...the captain did the right thing eventually; he disconnected the AP when it wasn't doing what he wanted (it turning right instead of left). Unfortunately, he was unable to manually control the aircraft after that. Automation dependency strikes again?
Last edited by Capn Bloggs; 7th Feb 2013 at 03:45.
the captain did the right thing eventually
Originally Posted by Capn Bloggs
Been said before but to turn the HDG knob long-way round to the left, past the 6 O'clock, and then have the AFGS turn shortest way to it when HDG is pulled, is illogical.
the captain did the right thing eventually; he disconnected the AP when it wasn't doing what he wanted (it turning right instead of left). Unfortunately, he was unable to manually control the aircraft after that.
Automation dependency strikes again?
Join Date: Aug 2008
Location: Betwixt and between
Posts: 666
Likes: 0
Received 0 Likes
on
0 Posts
How come 25 000 TT pilot is automation dependent? By reading PPRuNe, one would assume that automation dependency is something reserved for the newbies.
Join Date: Apr 2008
Location: nowhere
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Join Date: Jan 2005
Location: W of 30W
Posts: 1,916
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by PJ2
Also, "comments" from the NTSB etc. Available on the Pakistan CAA site.
One BEA comment
The time reference is local time, whereas it is in UTC for the rest of the chapter 8.
The BEA suggests referring to UTC time only.
The time reference is local time, whereas it is in UTC for the rest of the chapter 8.
The BEA suggests referring to UTC time only.
aterpster, JammedStab;
"Wasn't that "confidential" report posted her a long time ago? " & "There is a thread about it somewhere."
Thanks guys, I would have looked for the final report in the original thread. I don't know how I missed the new thread but I probably didn't do the usual search first.
Regarding the other thread, a gentleman by the handle of "maajam" provided first looks at the "confidential" report. The report's formal availability from the Pakistan CAA site is first mentioned on January 15, 2012 by stealthpilot, post #240.
"Wasn't that "confidential" report posted her a long time ago? " & "There is a thread about it somewhere."
Thanks guys, I would have looked for the final report in the original thread. I don't know how I missed the new thread but I probably didn't do the usual search first.
Regarding the other thread, a gentleman by the handle of "maajam" provided first looks at the "confidential" report. The report's formal availability from the Pakistan CAA site is first mentioned on January 15, 2012 by stealthpilot, post #240.
Last edited by PJ2; 8th Feb 2013 at 22:21.
Join Date: Apr 2008
Location: nowhere
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Don't know. But seeing as no one has bothered to translate it into english, most of the world knows nothing of it anyways, and that is the biggest problem. Any care to translate in detail?
Join Date: Jan 2005
Location: W of 30W
Posts: 1,916
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by JammedStab
But seeing as no one has bothered to translate it into english
French only, not a necessity to provide the International version for all to have the opportunity to study and question those reports.
The Ste-Odile report is voluminous but repetitive and empty. I have no intention to translate it, but just confronting the numerous time references is enough to question the BEA credibility.
We have translated the Toulouse 346 report here here and here.
Originally Posted by Clandestino
A lot of things have been said before that caused considerable amusement on the part of those who know generally a bit about AFCS. Activating the HDG mode will always turn the aeroplane nearest way to heading bug on anything. To turn long way around one goes into HDG first.
Originally Posted by Clandestino
So after he used inappropriate procedure, lost contact with runway in visual circling, he was right in disconnecting the a/p just to find out he couldn't fly?
Originally Posted by Clandestino
How come 25 000 TT pilot is automation dependent? By reading PPRuNe, one would assume that automation dependency is something reserved for the newbies.