(2)
The Mach/speed trim mode (AMM 22-24-00) receives its commands from the Stabilizer Trim/Elevator Asymmetry Limit Module (SAM) and is active whenever the autopilot or manual trim is not engaged. The Mach/speed mode trims the stabilizer opposite to any Mach or speed changes.
(3)
These sections cover the general description and operation of the automatic stabilizer trim system (AMM 22-22-00) and the Mach trim/speed stability system (AMM 22-24-00).
E. Thrust Management System (Fig. 5)
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MAINTENANCE MANUAL
SEE E
SEE F
SEE A B C
SEE D WARNING ANNUNCIATION
YAW DAMPER TEST SWITCH TEST PANEL R L TEST CONFIG T/O INOPLDG FWD DUCT LEAK FUEL QTY ANTI ICE WINDOW/ PROBE HEAT L R AIR DATA CMPTR R L STALL AFT WING GND PROX YAW DMPR EQUIP COOL YAW DAMPER ENGAGE SWITCHES YAW DAMPER CONTROL PANEL ON w INOP a ON INOP w a YAW DAMPER L R TAT - 12C CLB EPR N1 1.65 1.28 97.5 327 1.8 1.4 1.0 1.65 1.28 97.5 327 EGI L YAW DAMPER R YAW DAMPER EICAS DISPLAY
A B C
MODAL SUPPRESSION ACCELEROMETER
F 1
RIGHT ADC LEFT AND
AND RIGHT LEFT,CENTER, IRU
LEFT AND RIGHT YAW DAMPER MODULES LEFT AND RIGHT YAW DAMPER SERVO
1 YDM DASH NUMBER -122 YDM AND SUBSEQUENT D E
Yaw Damper System Figure 3
B05143
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MAINTENANCE MANUAL
STABILIZER TRIM SYSTEM
AUTOMATIC STABILIZER TRIM SYSTEM ONLY MACH SPEED STABILITY SYSTEM ONLY
Automatic Stabilizer Trim and Mach Trim/Speed Stability
Figure 4
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MAINTENANCE MANUAL
THRUST MODE SELECT PANEL
B
Thrust Management System Figure 5
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(1)
The Thrust Management System (TMS) controls the engine thrust settings during takeoff, cruise and landing (full flight regime). The TMS functions include thrust limit computation, autothrottle control, and information display. Engine thrust limits are computed by the Thrust Management Computer (TMC) based on the selected mode on the Thrust Mode Select Panel (TMSP). The TMS can be operated independent of, or coordinated with the AFDS and FMCS.
(2)
The thrust management system consists of the following four
subsystems:
(3)
Thrust Management Power (Ref 22-31-00)
(a) This section covers the general description of the ac and dc power distribution and interface components common to the TMS. It covers the component detail and operation of the TMC and TMSP.
(4)
Thrust Management System (Ref 22-32-00)
