JAA:aircraft performance(weight/thrust)must comply with approach climb gradient(one engine at TOGA thrust and flaps 15).
For example missed approach is 3%,aircraft engine fails on final,continue on landing flaps to minima,no visual,go around to a flaps 15.
Dispatch must ensure 'scheduled' weight allos the gradient for conditions at destination eta.
If conditions change(weather,runway in use),crew must assure themselves of such perforlance by calculating actual single engine flaps 15 gradient using boeing onboard FCOM 'dispatch performance' tables.
ICAO/FAA: no such requirement.pilot decision.i guess its all about statistics/risk assessment in their case.
Flight pathobn:
[QUOTE][One reason you may see different DA's can be because of extreme cold temps. There will be a DA for temps down to -20C, then another DA for temp below -20C on baro.../QUOTE]
are you on drugs?
