(2)
Mode 2 - Large Terrain Closure Rate
(3)
Mode 3 - Too Much Altitude Loss During Climbout (at Takeoff or in Go-Around) When Not In Landing Configuration
(4)
Mode 4 - Not Enough Terrain Clearance
(5)
Mode 5 - Too Much Deviation Below The Glide Slope Centerline
(6)
Mode 6 - Aural Callouts When Descending Through Selected Radio Altitudes
(7)
Mode 7 - Windshear Detection
(8)
Terrain Clearance Floor (TCF) - Not Enough Terrain Clearance (additional to Mode 4)
(9)
Terrain Awareness Alerting and Display (TAAD) - Aircraft Fight Path and Terrain Difference (displays terrain and provides alerts for terrain threats ahead of the aircraft).
B. The system consists of: 1 - Enhanced Ground Proximity Warning Computer (EGPWC) 1 - Ground Proximity - Glideslope (G/S) Inhibit Light/Switch 1 - Gear Override Switch 1 - Flap Override Switch 1 - Terrain Override Switch 2 - Terrain Display Select Switches 2 - Navigation Displays and associated range, mode, and brightness
controls 2 - Primary Flight Displays for WINDSHEAR and PULL UP indications
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A
747-400
MAINTENANCE MANUAL
GROUND PROXIMITY
WARNING COMPUTER
Ground Proximity Warning System - Component Location
Figure 1 (Sheet 1)
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
K60656
A
747-400
MAINTENANCE MANUAL
FIRST OFFICER'S
CAPTAIN'S AURAL AURAL WARNING SPEAKER
WARNING SPEAKER PILOTS' LIGHTSHIELD
PILOTS' CENTER
INSTRUMENT PANEL SEE D
SEE C
CAPTAIN'S FIRST OFFICER'S
INSTRUMENT PANEL
INSTRUMENT PANEL SEE B
SEEB E
FORWARD ELECTRONICS CONTROL PANEL
SEE C
FLIGHT COMPARTMENT
GND PROX SYS GND PROX SYS
WINDSHEAR REAC >WINDSHEAR SYS 1
TERR SYS WINDSHEAR SYS
2
>ALT CALLOUTS
10
10
TERR POS
10 10
MAIN EICAS AUXILARY EICAS WINDSHEAR DISPLAY DISPLAY GPWS EICAS MESSAGES
128 MWDG
120
WINDSHEAR AND
C
PULL UP INDICATIONS ON PFD'S
PRIMARY FLIGHT DISPLAY B
GROUND PROXIMITY WARNING MODULE E
CAPTAIN'S AND FIRST OFFICER'S MASTER WARNING AND CAUTION LIGHT 1 AIRPLANES WITH IDS SOFTWARE -015 OR PW-016 2 AIRPLANES WITH IDS SOFTWARE GE-016,
D
RR-016, PW-017 AND SUBSEQUENT
Ground Proximity Warning System - Component Location Figure 1 (Sheet 2)
K60782
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747-400 MAINTENANCE MANUAL
MINS BARO
FPV MTRS
RADIO BARO IN HPA RST STD VOR MAP 80
160
40
APP PLN
VOR L 20 320 VOR R
OFF CTR 10 TFC 640 OFF
ADF L 5 ADF R
WXR STA WPT ARPT DATA POS TERR
TERRAIN DISPLAY
SELECT SWITCH
EFIS CONTROL PANEL WITH A TERRAIN DISPLAY SELECT SWITCH
(EXAMPLE)
GS315 TAS312
VOR L 116.80
HDG 131 MAG
190`/15
DME 82.5
TERRAIN
20
GPWS ALERT MESSAGES: -TERRAIN (RED) -TERRAIN (AMBER)
TERR
OVRD
AMBER TERR
FAIL
TERR
POS
CYAN TEST TERR TERRAIN CAUTION ALERT
TERR - SOLID YELLOW
TERRAIN WARNING ALERT
- SOLID RED
ND EGPWS TERRAIN DISPLAY
(EXAMPLE)
Ground Proximity Warning System - Component Location 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 导航 NAVIGATION 3(10)
