Flaps + Speedbrakes on Approach?
Join Date: Oct 2009
Location: UK
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Hi Pantload,
I agree that we should always follow our SOPs and that they may differ slightly between operators.
Ours says that we may use speed brakes & Flaps but with the following caution:
"If the aircraft speed is significantly higher than S on the glide slope, or the aircraft does not decelerate on the glide slope, extend the landing gear in order to slow down the aircraft. (which agrees with yours)
It is also possible to use speedbrakes. However the flight crew should be aware that the use of speedbrakes causes an increase in VLS. Using speedbrakes beyond flap 1 may also lead to large variations in pitch.
For A319 and A321: NOTE:
Using speedbrakes whilst changing flap configuration may lead to the A/THR erroneously maintaining a target speed of V APP target +10kts. In this case pressing the FCU A/THR button to switch the A/THR off and then back on should reset the correct target. The ECAM ENG THR LOCK may be triggered. Alternatively manual thrust maybe used by performing a normal disconnect."
Before Aviophage tells me I should have anticipated the shorter track mileage, the procedure has reduced the number of GAs due not being stable by 1,000ft.
I agree that we should always follow our SOPs and that they may differ slightly between operators.
Ours says that we may use speed brakes & Flaps but with the following caution:
"If the aircraft speed is significantly higher than S on the glide slope, or the aircraft does not decelerate on the glide slope, extend the landing gear in order to slow down the aircraft. (which agrees with yours)
It is also possible to use speedbrakes. However the flight crew should be aware that the use of speedbrakes causes an increase in VLS. Using speedbrakes beyond flap 1 may also lead to large variations in pitch.
For A319 and A321: NOTE:
Using speedbrakes whilst changing flap configuration may lead to the A/THR erroneously maintaining a target speed of V APP target +10kts. In this case pressing the FCU A/THR button to switch the A/THR off and then back on should reset the correct target. The ECAM ENG THR LOCK may be triggered. Alternatively manual thrust maybe used by performing a normal disconnect."
Before Aviophage tells me I should have anticipated the shorter track mileage, the procedure has reduced the number of GAs due not being stable by 1,000ft.
Last edited by rudderrudderrat; 27th Aug 2010 at 13:37.
