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Copyright . The Boeing Company. See title page for details.
10.20.8 December 1, 2000
737 Operations Manual
Introduction
The electronic flight instrument system (EFIS) presents a dynamic color display of the parameters necessary for flight path control. The displays provide the following information:
Primary flight instruments are electronically displayed on the Captain’s and First Officer’s panels. They consist of an Electronic Attitude Director Indicator (EADI) and an Electronic Horizontal Situation Indicator (EHSI).
Copyright . The Boeing Company. See title page for details.
December 1, 2000 10.30.1
Flight Instruments, Displays -Electronic Flight Instrument System (EFIS)
737 Operations Manual
EFIS Control Panel
The left EFIS control panel controls the Captain’s EADI and EHSI. The right EFIS control panel controls the First Officer’s EADI and EHSI.
5 76 11
ADI HSI
EXP
1
RANGE
VOR/NAV ILS 160 320
DH REF
80 VOR/
40
MAP FULL
ILS
8
20
2
TFC
2
CTR 10
NAV
MAP BRT
PLAN
WXR
1
ON
9
RST
3
MAP
VOR/ADF NAV AID ARPT RTE DATA WPT BRT
3
ON
ON
ON ON ON
4
10
ADI
HSI FULL EXP
RANGE DH REF
VOR/ILS VOR/ILS 160 320
80 40
MAP 220
CTR 10
MAP BRT
PLAN
WXR
1
ON RST
MAP VOR/ADF NAV AID ARPT RTE DATA WPT BRT
ON
ON
ON ON ON
# As installed
AFT ELECTRONIC PANEL
1 Decision Height Reference Indicator
.
displays selected decision height
.
display on EADI blanks when a negative decision height is selected.
2 Decision Height Selector
Rotate - selects decision height for DH alerting.
Copyright . The Boeing Company. See title page for details.
10.30.2 December 1, 2000
Flight Instruments, Displays -Electronic Flight Instrument System (EFIS)
737 Operations Manual
Decision Height Reset Switch
Push –
.
resets DH alert on related EADI
.
changes RA display from yellow to white
. on some airplanes, blanks radio height alert on related EADI.
EADI Brightness Control
Rotate – adjusts brightness of EADI display.
EHSI Brightness (outer)
Rotate – adjusts brightness of EHSI display.
EHSI Brightness (inner)
Rotate – adjusts brightness of weather radar display.
EHSI Mode Selector
(see following pages)
EHSI Range Selector
Rotate – Selects nautical mile range for MAP, CTR MAP, PLAN, and weather radar displays.
Weather Radar Switch
Push – energizes weather radar transmitter and displays weather radar information (refer to Chapter 11, Flight Management, Navigation)
Map Switches
Push –
.
selects detailed information displays
.
displays can be selected simultaneously
.
illuminated white when selected
.
second push removes the information.
VOR/ADF –
.
Displays VOR and/or ADF relative bearing radials if VOR/ADF receivers
are tuned to usable stations and valid data is being received
.
suppresses MAP mode displayed ADF pointer on airplanes with ADF in
MAP mode.
Flight Instruments, Displays -Electronic Flight Instrument System (EFIS) 737 Operations Manual
Navigation Aids (NAV AID) –
.
displays FMC data base high altitude navigation aids on map scales 80,
160, or 320 NM
.
displays all FMC data base navigation aids if on map scales 10, 20, or 40
NM.
Airports (ARPT) – displays all airports stored in FMC data base which are within viewable map area of EHSI.
Route Data (RTE DATA) – displays altitude constraint (if applicable) and ETA for each active route waypoint.
Waypoints (WPT) – displays waypoints in FMC data base not in flight plan route if selected range is 40 NM or less.
Traffic (TFC) Switch
.
displays or removes TCAS information on EHSI
