Ttree Ttrimmer:
"Tunturi
You may like to get your QRH out again if you are still on type."
OK. I have done and I quote for Eicas "FUEL SYSTEM PRESURE" "Thrust from affected engine may deteriorate during climb at high altitude. If required thrust cannot be maintained open crossfeed valve" (or valves if two fitted.
This covers failure of two pumps in one tank or indeed all pumps failed and is nothing to do with crosfeeding as such but same principal would apply. Incidentally crossfeed is opened for a single centre tank pump failure but this is only to prevent imbalance building up in wing tanks. So what am I missing here? Don't see what's different from what I said. EXCEPT that I am looking at a 757 QRH, is the 767 that different? Even if it is it doesn't change my original comment on not believing FL240 was classed as particularly high in these circumstances and Boeing give no guidance at all on this except for the bulletin which you mention.(yes I now know the incident occurred at FL290.
