This is an old presentation about when thrust is not correctly set to Takeoff and Airbus cautions about it across all models. B737 doesn't have cautions. Such an event happened last year on 737-800 in Finland on 1Dec21 where on a contaminated runway the PF on derate TO was clearing engines on brakes at 70% N1 got distracted by slipping aircraft (due to his insufficient brake application) and forgot to set TO thrust. Capt was distracted by ATC query didn't check. The aircraft got airborne 400mts from RW end. So this is another problem. Why should pilot bother to use flex on contaminated runway even if it was allowed? He has enough headache as it is.
Last edited by vilas; 4th Dec 2022 at 03:41.