A320 overweight LDG with F/S jammed
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Joined: Mar 2006
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From: perdido en el corazon de la grande babilon
A320 overweight LDG with F/S jammed
Dear all,
in case of overweight landing with slats /flaps jammed, Vls could be higher than Vfe next. In this case, to my understanding, the relevant procedure says that one has to disconnect the ATHR in order to reduce the speed below Vls and, once below Vfe next, one can extend the flaps/slats to the next configuration, this until landing configuration is established.
Is this correct?
in case of overweight landing with slats /flaps jammed, Vls could be higher than Vfe next. In this case, to my understanding, the relevant procedure says that one has to disconnect the ATHR in order to reduce the speed below Vls and, once below Vfe next, one can extend the flaps/slats to the next configuration, this until landing configuration is established.
Is this correct?
Joined: Sep 2011
Posts: 15
Likes: 0
From: Bogota, Colombia
Hi,
According to QRH-27.01 sixth note:
-If VLS is greater than VFE NEXT (overweight landing case), the FLAPS lever
can be set in the required next position, while the speed is reduced to follow
VLS reduction as surfaces extend. The VFE warning should not be triggered.
In this case, disconnect the A/THR. A/THR can be re-engaged when the
landing configuration is established.
So yeah,
Best Regards,
Daniel
According to QRH-27.01 sixth note:
-If VLS is greater than VFE NEXT (overweight landing case), the FLAPS lever
can be set in the required next position, while the speed is reduced to follow
VLS reduction as surfaces extend. The VFE warning should not be triggered.
In this case, disconnect the A/THR. A/THR can be re-engaged when the
landing configuration is established.
So yeah,
Best Regards,
Daniel

Joined: May 2000
Posts: 1,021
Likes: 2
From: Glorious West Sussex
Daniel ... RTFQ
Procedure..
Do not fly slower than VLS!
Reduce to and stabilise at VLS.
A/THR OFF, maintain VLS.
Select next FLAP position, even if above VFE next.
As the Slat or Flap extends VLS will reduce (remember VLS is always accurate for the existing CONF). Adjust thrust manually to reduce speed as VLS reduces.
At required CONF ... A/THR ON with a suitable selected speed.
Procedure..
Do not fly slower than VLS!
Reduce to and stabilise at VLS.
A/THR OFF, maintain VLS.
Select next FLAP position, even if above VFE next.
As the Slat or Flap extends VLS will reduce (remember VLS is always accurate for the existing CONF). Adjust thrust manually to reduce speed as VLS reduces.
At required CONF ... A/THR ON with a suitable selected speed.
Last edited by TyroPicard; 19th December 2012 at 18:21.




