737-700 AVIONCS BITE HANDBOOK 航电自测设备手册 2(8)

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General
You can engage the autopilot in CMD or CWS and turn on the flight directors while on the ground. You can activate some of the modes while on the ground. You need hydraulic power to engage the autopilot.
When on the ground, the magnetic heading replaces the magnetic track so you can do several tests.
TO/GA and Flight Directors
The graphic shows what you see if you turn on the flight directors (F/D) and push the TO/GA switch on the ground.
When you turn on the captain F/D switch the master annunciator light above the switch turns on. The captain FMA shows FD. Turn on the first officer F/D switch. The first officer FMA shows FD.
When you push a TO/GA switch the first officer master annunciator turns on. Both FMAs show TO/GA and FD. The F/D commands show on the AI. The pitch command is set to -10 degrees and the roll command shows wings level.
TO/GA and Autopilot
Engage A/P A in CMD. The CMD A light comes on on the engage switch. The FMAs shows these annunciations:
-CMD
-CWS P
-CWS R.
Push the TO/GA switch and the A/P disengages. The red A/P light on the ASAs flashes and the aural warning supplies a wailer sound.
Training Information Point
If you turn on the hydraulic power, observe the following warning.
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDER, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.

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January 2005
22-11

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SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL
1.
TURN ON CAPT

MA LIGHT COMES ON

2.
TURN ON F/O F/D SWITCH

3.
PUSH TO/GA SWITCH

1.
ENGAGE A/P A IN CMD

A CMD ENGAGE SW LIGHT COMES ON

2.
PUSH TO/GA SWITCH

 

MA F/D OFF  CAPT FMA  FD 
F/D  CHANGE INDICATIONS  F/O FMA  FD 

OFF

MA
F/D
OFF
F/O MA LIGHT COMES ON
A/P ENGAGE CMD A CMD B
CWS A CWS B
DISENGAGE

A/P DISENGAGES
A/P ANNUNCIATOR
FLASHES RED
AURAL WARNING
TO/GA FD
CMD CWS P CWS R

1 A/P
A/T
FMC
P/RST P/RST
P/RST 2 TEST

A22-11-00-101.fm
DFCS - GROUND OPERATIONS - TO/GA SWITCH

January 2005
22-11

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SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved

A22-11-00-102.fm
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL

DFCS - GROUND OPERATIONS - ROLL MODE -LNAV AND HDG SEL

General
You can push these roll mode selector switches on the MCP and activate these modes when the airplane is on the ground and the F/Ds are on:
- LNAV 
- HDG SEL 
- VOR LOC. 

You can push the HDG SEL or VOR LOC mode selector switch when an A/P is engaged. You cannot activate LNAV on the ground when an A/P is engaged.
LNAV
When you push the LNAV mode selector switch, the mode selector switch light comes on. You can also see LNAV and FD on the FMA. You do not see any F/D commands on the AI.
HDG SEL and Flight Directors
Turn on the F/Ds and push the HDG SEL mode selector switch. The FMA annunciator shows HDG SEL and FD. The F/D integrated cue does not show because there is no valid pitch mode. Push ALT HLD to activate a pitch mode. The FMA now also shows ALT HOLD and the F/D cue shows on the AI. Turn the selected heading to a heading different from the airplane heading. The F/D command will turn to command a turn to the selected heading.
HDG SEL and Autopilot
Engage A/P A in CMD and push the HDG SEL mode selector switch. These annunciations show on the FMA:
　
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