PPRuNe Forums - View Single Post - TAM A320 crash at Congonhas, Brazil
View Single Post
Old 30th Jul 2007, 08:14
  #682 (permalink)  
NigelOnDraft
 
Join Date: Jan 2001
Location: UK
Posts: 2,044
pira
you could select idle thrust in one engine while the other was above idle in a Boeing Aircraft, but what you would never see is one engine trying to maintain Vapp after touchdown.
Thanks for that... question actually related to selecting Rev on one?
but what you would never see is one engine trying to maintain Vapp after touchdown
Some debate as to whether it's trying to maintain VAPP or just runs up to CLB Pwr. NB the TLs are supposed to be selected to idle prior touchdown... apart from anything else, this disconnects the ATHR, and prevents the aircraft trying to maintain VAPP. Leaving a TL at the CLB detent (well forward) is against all instincts (B+AB!) and will either try to hold VAPP (ATHR engaged) or go to Clb Pwr (ATHR disengaged).

I think it is somewhat unfair to criticise the design architecture, as some are doing, decades after it's introduction. It is is somewhat incredulous to a design / certification procudure that a pilot might leave 1 TL well forward after landing. The issue is the HF one over why pilots are doing this strange habit, and the common factor seems to be a curious reaction to the 1 Rev U/S process. IMHO it is the HF issue that needs to be addressed (Training / SOP change)... much as with the 737 Cabin Alt/TO COnfig system...

NoD
NigelOnDraft is offline