787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Management, Navigation -
FMC Cruise
Copyright © The Boeing Company. See title page for details.
11.42.32 D615Z003-TBC
Cruise Descent
Setting an altitude below the current altitude in the MCP altitude window and
pushing the altitude selector (more than 50 NM from a T/D) causes the cruise
altitude to be set to the MCP altitude and the airplane to descend to the new
altitude. The CRZ page displays ACT ECON CRZ DES. If the altitude set in the
altitude window is below the speed transition (SPD TRANS) or restriction (SPD
RESTR) altitude displayed on the DES page, those altitudes and speeds are
deleted. Transition or speed restrictions must be maintained by flight crew action.
The autothrottle sets a calculated thrust value for an approximate 1250 foot per
minute descent. Pitch changes maintain the commanded cruise speed. Thrust
levers can be manually positioned to adjust the descent rate.
VNAV page title displays cruise phase in a descent to a new cruise altitude.
VNAV page title displays cruise phase after level off at new cruise altitude.
1
During Cruise Descent
2
End of Cruise Descent
SED
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October 31, 2007
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