- 217 -
SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL

DFCS - GROUND OPERATIONS - APPROACH
General
You can activate the autopilot mode while on the ground.
APP and Flight Directors
Turn on the F/Ds and push the APP mode selector switch. The FMAs show these annunciations:
-G/S
-VOR/LOC
-FD.

The G/S annunciation will be in white letters to show the armed mode. The VOR/LOC may show in either green or white letters. It shows in green letters if the ILS receiver has a valid localizer signal. No F/D commands will show because there is no valid pitch mode.
APP and Autopilot
Engage A/P A in CMD and push the APP mode selector switch. Tune the navigation control panels to the airport ILS frequency. The FMAs show these annunciations:
-G/S
-VOR/LOC
-CMD.

The G/S annunciation shows in white letters. If the ILS receiver does not receive a valid localizer signal, VOR/LOC will show in white letters and CWS P and CWS R will show in amber letters on the FMAs. If the ILS receiver gets a valid localizer signal, VOR/LOC shows in green letters and CWS P shows in amber letters.
The G/S annunciation shows in white letters. If the ILS receiver does not receive a valid localizer signal, VOR/LOC will show in white letters and CWS P and CWS R will show in amber letters on the FMAs. If the ILS receiver gets a valid localizer signal, VOR/LOC shows in green letters and CWS P and SINGLE CH show in amber letters.

A22-11-00-105.fm
January 2005
22-11

- 218 -
SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL
FLIGHT DIRECTOR

L NAV
1. TURN ON F/D SWITCHES
VOR LOC
2. PUSH THE APP
MODE SELECTOR
SWITCH

AUTOPILOT

L NAV
1.
ENGAGE A/P A IN CMD

2.
PUSH THE APP

VOR LOC
MODE SELECTOR
SWITCH

OR

CMD
G/S VOR/LOC
CWS P
CWS R
OR

VOR/LOC
CMD
G/S
CWS P

A22-11-00-105.fm
DFCS - GROUND OPERATIONS - APPROACH
January 2005
22-11

- 219 -
SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
SOUTHWEST AIRLINES.
737-700 MAINTENANCE TRAINING MANUAL

DFCS - GROUND OPERATIONS - CONTROL WHEEL STEERING
A22-11-00-106.fm
General
These are the three ways to engage an A/P in control wheel steering (CWS) on the ground:
-Push the CWS engage switch -Push the CMD engage switch and do not select a roll and pitch mode -When the A/P is engaged in CMD, apply force to the control column and control wheel.

You need hydraulic pressure to engage the autopilot in the CWS mode.
CWS Engage Switch
Push the CWS A engage switch. The light on the engage switch comes on. The FMAs show CWS P and CWS R in amber letters.
CMD Engage Switch and No Modes
Push the CMD A engage switch. The light on the engage switch comes on. The FMAs show these annunciations:
-CMD
-CWS P
-CWS R.

CWS Reversion From CMD
Engage A/P A in CMD and push the HDG SEL and ALT HLD mode selector switches. This engages the A/P in a roll and pitch mode. The FMAs show these annunciations:
-ALT HOLD
-HDG SEL
-CMD.

Apply force to the control wheel and the control column until the A/P reverts to the CWS modes. The FMAs show these annunciations:
-CMD
-CWS P
-CWS R.

The amber A/P annunciation on the ASAs flashes when the A/Ps revert to CWS.
January 2005
22-11

- 220 -
SOUTHWEST AIRLINES PROPRIETARY(c) All rights reserved
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：737-700 AVIONCS BITE HANDBOOK 航電自測設備手冊 2(11)