(2)
AIRPLANES WITH EFIS; Have a limit annunciation on the Thrust Mode Annunciator, one A/T warning light on each Autoflight Status Annunciator, and mode annunciation on each EADI.
D. System units and components are shown in Fig. 1, together with those units from other systems which play a vital role in Autothrottle system operation.
E. AIRPLANES WITH ENGINE INSTRUMENT SYSTEM (EIS); The A/T limit annunciation is displayed on the A/T limit annunciator on P2-2 panel.
F. Autothrottle (A/T) components are located in the flight compartment, in the electronics equipment area, on the left side of the fuselage, and on both engines (Fig. 1).
(1)
The DFCS mode control panel is located on the glareshield (P7).
(2)
The A/T disengage switches and takeoff/go-around switches are located on the thrust levers.
(3)
AIRPLANES WITHOUT EFIS; The Flight Mode Annunciators are located on captain's panel (P1) and first officer's panel (P3).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
GLARESHIELD (P7) FIRST OFFICER'S INSTRUMENT PANEL (P3)CENTER INSTRUMENT PANEL (P2) . DFCS MODE CONTROL PANEL . FLIGHT MODE ANNUNCIATOR. THRUST MODE ANNUNCIATOR 2 3 . ATTITUDE DIRECTOR INDICATOR
2. A/T LIMIT ANNUNCIATOR 4 SEE D
SEE I SEE E F 1
. AUTOFLIGHT STATUS ANNUNCIATOR
THRUST LEVERS . ELECTRONIC ATTITUDE
. A/T DISENGAGE SWS 1 AND 2 DIRECTOR INDICATOR
. GO AROUND SWITCHES 1 AND 2 SEE G H 2
SEE B
P6 PANELCAPTAIN'S INSTRUMENT PANEL (P1)
. CIRCUIT BREAKERS . FLIGHT MODE ANNUNCIATOR . ATTITUDE DIRECTOR INDICATOR
SEE 1 P18 PANEL
EF . CIRCUIT . AUTOFLIGHT STATUS ANNUNCIATOR BREAKERS . ELECTRONIC ATTITUDE DIRECTOR INDICATOR E1-1 . AUTOTHROTTLE
LEFT AND RIGHT AUTOTHROTTLESEEGH2 SERVOMECHANISMSCOMPUTER
SEEC SEEA
STA 370
STA
360
AUTOTHROTTLE
DISENGAGE
SWITCH TORQUE
SWITCH
TO/GA TORQUE SWITCH MECHANISMSWITCHES
FWD ACTUATOR ASSEMBLY
CONNECTOR
A
ALPHA/NUMERICAL TEST READOUT
B
1 AIRPLANES WITHOUT EFIS
2 AIRPLANES WITH EFIS
AIRPLANES WITHOUT EIS AUTOTHROTTLE SYSTEM COMPUTER
3
4 AIRPLANES WITH EIS
C
Autothrottle System Component Location Figure 1 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
A/T ARM IAS/MACH V NAV
A/T ARM LIGHT READOUT SELECT
SWITCH (GREEN) SWITCH
COURSE A/T IAS/MACH V NAV HEADING L NAV ALTITUDE VERT SPEED A/P ENGAGE COURSE ARM
AB CMD 30 10
DNVOR LOC
F/D
F/D ON OFF
SEL C/0
CWS ON
10 30
N1 SPEED LVL CHG HDG SEL APP ALT HOLD V/S
OFF
OFF OFF
UP
N1 SELECT
LEVEL CHANGE SWITCH SPEED
IAS/MACH
SELECT SWITCH
SELECT
SWITCH
DFCS MODE CONTROL PANEL
CONTROL
D
DH
FAS
FAST 10UP
DOWNOW SLOW 10
TEST TEST
ADI (FAST/SLOW INDICATOR) 1
E
AFDS A/T N1 LIMIT AFDS A/T N1 LIMIT
L NAV G VNAV PATHG FMC SPD G
CRZ G HDG SEL G VNAV SPDG N1 G
B
VOR LOCB ALT ACQG MCP SPDG
CLB B VOR LOC G ALT HOLDG RETARD G
B
G/SB V/SB ARMB
REDUCED B G/S G V/S G A/T LIMITW CON B
FLARE B MCP SPD G THR HOLDG
TO B FLAREG TO/GAG GA G GA B
B B
CWS ROLLA SINGLE CH
1
A/P A/T FMC A A/P A/T FMC 1
CWS PITCH A/P OFF W
A
P/RST P/RST P/RSTA P/RSTR P/RST P/RSTA
2 2
R
A/P STATUS A A A/P STATUS
TEST TEST
TEST 1 DISPLAY TEST 2 DISPLAY
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