787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Management, Navigation -
Flight Management Computer
Copyright © The Boeing Company. See title page for details.
D615Z003-TBC 11.32.3
With both TO 1 and TO 2, the thrust setting parameter is considered a limitation
for takeoff; therefore, thrust levers should not be advanced further except in an
emergency. A further thrust increase following an engine failure could result in a
loss of directional control. Use the takeoff speeds calculated by the EFB for the
selected derate or variable takeoff rating condition.
Derate/variable takeoff rating can be further reduced by assumed temperature.
Assumed Temperature Thrust Reduction Takeoff
Entering an assumed temperature higher than the actual temperature reduces
takeoff thrust.
The maximum thrust reduction authorized is 25 percent below any certified rating.
Do not use assumed temperature reduced thrust if conditions exist that affect
braking, such as slush, snow, or ice on the runway, or if potential windshear
conditions exist.
The assumed temperature thrust setting is not considered a limitation. The
assumed temperature reduction can be removed. If conditions are encountered
where more thrust is necessary, the crew can manually apply full thrust.
February 13, 2009
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