737 Flight Crew Operations Manual
Flight Management, Navigation -
FMC Takeoff and Climb
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 11.41.3
The FMC engine-out mode will not be set when the groundspeed is less than 60
knots. If the engine-out mode is set while on the ground, the FMC will exit the
mode when the speed drops below 60 knots. Engine-out speeds will be available
if an engine fails on takeoff after 60 knots.
Prediction displays will be blanked on the MCDU pages when engine failure is
detected and airspeed is over 60 knots of ground speed. Route (RTE) data,
estimated time of arrival (ETA) data and top of climb (TOC) data displayed on the
CDS Navigation Display will be blanked when an engine-out condition has been
detected by the FMC. Engine-out will be cleared and the target speed and
predictions will return to normal two engine values when the crew selects and
EXECutes the ALL ENGINE prompt on the CLB page, or the CRZ or DES phase
is entered, or a Flight Complete occurs, regardless of how many engines are
running.
A new FMC CDU message (ENTER EO CRZ SPD AND ALT) will be displayed
when the engine-out operation is terminated due to reaching cruise altitude or the
pilot depresses the ALL ENGINE prompt button on the climb page.
When an engine failure has been detected, the thrust reduction height and the all
engine acceleration height specified on TAKEOFF REF page two will be ignored.
All waypoint fuel, ETA, Progress page and LEGS page performance predictions
will be blanked. Upon exiting the engine out takeoff flight phase, the performance
predictions will be displayed.
If an engine failure is detected after the all engine takeoff flight phase is complete,
there will be no automatic engine out VNAV function as well as no modification
of the Climb page.
Note: Prior to the all engine flight phase completion, with an engine failure
detected, the Climb page is modified as depicted in the following
illustration.
September 27, 2012
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