787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Flight Controls -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
9.10.4 D615Z003-TBC
When the stabilizer signal is not present or is invalid, the digital readout and
pointer are not displayed on the stabilizer position indicator.
When the stabilizer trim is inoperative, the digital readout is replaced with an "X".
The box, the "X" and the pointer display amber. The pointer remains on the scale
at the last known trim position.
The green band indicates the allowable takeoff trim range, based on gross weight
and CG information from the FMC.
A default green band is displayed from 4 to 9 units of trim prior to performance
data being entered into the FMC.
When the green band signal is not present or is invalid, the green band is not
displayed.
Spring-loaded to neutral.
Push (both switches) –
• on the ground, directly moves the stabilizer
• in the air in normal mode, changes the trim reference airspeed
• in the air in the secondary and direct modes, directly moves the stabilizer
NORM –
• electrical power is supplied to the related stabilizer control unit
• if unscheduled stabilizer motion is detected, electrical power to the related
stabilizer control unit is automatically shut off
CUTOUT – shuts off electrical power to the related stabilizer control unit.
3
Takeoff Trim Green Band
1
Alternate (ALTN) PITCH TRIM Switches
2
Stabilizer (STAB) Cutout Switches
PARKING
BRAKE
ALTN
PITCH TRIM
NOSE DN
NOSE UP
PULL
CUTOUT
STAB
NORM R2L2
CONTROL STAND
1
2
February 13, 2009
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