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ALL ú ú 09 Page 44 ú Feb 18/02
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A
747-400
MAINTENANCE MANUAL
CAPTAIN'S FIRST OFFICER'S
WARNING SPEAKER
WARNING SPEAKER SEE C
SEE C NAVIGATION
CAUTION ANDDISPLAY WARNING LIGHTS
SEE A
SEE D
PRIMARY
FLIGHT
DISPLAY
SEE B
WEATHER DISPLAY
HALF SELECTED
RANGE SCALE FLIGHT COMPARTMENT
NO WINDSHEAR
MESSAGE SHOWN
WINDSHEAR ICON
10 10
WINDSHEAR WINDSHEAR
5
CAUTION -AMBER
10 10
AIRPLANE SYMBOL
130
NAVIGATION DISPLAY PRIMARY FLIGHT DISPLAY AB
"MONITOR RADAR
NO EFFECTS NO EFFECTSDISPLAY"
RST STD RST STD
8040 160 8040 160
20 320 20 320
CTR 10 TFC 640 CTR 10 TFC 640
5 5
WXR TERR WXR TERR
CAPTAIN'S AND FIRST OFFICER'S
WARNING SPEAKERS MASTER CAUTION AND WARNING LIGHTS
C D
PWS CAUTIONS
PWS Caution and Warning Flight Compartment Effects
Figure 9 (Sheet 1)
L10071
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH PWS ACTIVE ú
34-43-00
ú ú 09 Page 45 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
CAPTAIN'S FIRST OFFICER'S
WARNING SPEAKER
WARNING SPEAKER SEE G
SEE G NAVIGATION
CAUTION ANDDISPLAY WARNING LIGHTS
SEE E
SEE H
PRIMARY
FLIGHT
DISPLAY
SEE F
WEATHER
DISPLAY
HALF SELECTED
RANGE SCALE FLIGHT COMPARTMENT
NO WINDSHEAR MESSAGE SHOWN
WINDSHEAR ICON
10 10
WINDSHEAR WINDSHEAR
5
MESSAGE -RED
WINDSHEAR 10 10
MESSAGE -
RED
WINDSHEAR
AIRPLANE SYMBOL
130
NAVIGATION DISPLAY PRIMARY FLIGHT DISPLAY EF
TAKE-OFF: "WINDSHEAR AHEAD, WINDSHEAR AHEAD"
APPROACH: "GO-AROUND, WINDSHEAR AHEAD"
WARNING LIGHT ON - RED WARNING LIGHT ON - RED
RST
STD RST STD
80 80160
160 20 320 40 40
20 320
CTR 10 TFC 640
CTR 10 TFC 640 5
5 TERR TERR
CAPTAIN'S AND FIRST OFFICER'S WARNING SPEAKERS MASTER CAUTION AND WARNING LIGHTS GH
PWS WARNINGS
PWS Caution and Warning Flight Compartment Effects
Figure 9 (Sheet 2)
L10072
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH PWS ACTIVE ú
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A
747-400 MAINTENANCE MANUAL
(13) Weather Radar Status and Fault Message Displays (Figure 10)
(a) The ND weather radar status, fault message, and range disgreement displays shown in figure 6 are described below: 1) Status messages of WXR WEAK due to a calibration fault, or
WXR ATT due to an altitude input fault or stabilization off condition will be displayed in the left center of the NDs. If a WXR WEAK and WXR ATT condition occurs simultaneously, the ND will prioritize the messages as follows; hightest -WEAK and lower - ATT. Weather data will continue to be displayed on the NDs. Both of these messages will be inhibited whenever a FAIL condition exists.
2) If the weather radar receiver/transmitter, control panel or antenna fails, a WXR FAIL message will be displayed on the left center of the NDs. To determine which weather radar LRU has failed a weather radar self-test must be performed. Refer to system self-test for an explanation of the ND messages.
3) In addition an RSTR INOP message will be displayed when the ND temperature is above the first threshold temperature. After 30 seconds the weather data will be removed. If the ND temperature goes above the second threshold the display immediately blanks.
4) The ND's compare the EFIS control panel, the weather radar R/T, and the FMC ranges. A difference between any of these ranges will cause a range disagreement message to be displayed on the ND with all other weather data removed.
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