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2 Caution Messages
Displayed (amber) –
• next highest priority alert messages after warning messages
• amber alert messages can be canceled by pushing the CANC switch or
recalled by pushing the RCL switch
3 Advisory Messages
Displayed (amber) –
• lowest priority alert messages; indented one space
• indented one space
• amber alert messages can be canceled by pushing the CANC switch or
recalled by pushing the RCL switch
4 Memo Messages
Displayed (white) –
• reminder of selected state of controls or systems
• cannot be canceled by pushing the CANC switch
• EICAS alert messages have display priority over memo messages; some
or all memo messages not displayed on current EICAS message page if
insufficient message lines are available below alert messages
5 Page (PG) Number
Displayed (white) –
• more than one page of alert or memo messages exists
• indicates the number of page selected
6 STATUS Cue
Displayed (cyan) –
• new status message exists
• no longer displayed when status display selected
• inhibited from after engine start until 30 minutes after lift-off
• inhibited if Secondary Engine Exceedance cue is displayed
7 RECALL Indication
Displayed (white) –
• when RCL switch pushed
• remains displayed for one second after switch released
April 01, 2001
747 Operations Manual
Warning Systems -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 15.10.3
8 Secondary Engine Exceedance Cue
Displayed (cyan) –
• engine parameter on secondary display is exceedanced
• displayed until displayed parameter returns to normal operating range
• inhibits display of Status cue
EFIS/EICAS Interface Unit (EIU) Selector
1 EIU Selector
L –
• left EIU provides data to EFIS and EICAS
• if left EIU fails, automatic switching to an operable EIU is inhibited; if
airplane is on standby power and left EIU fails, all CRT displays fail
AUTO –
• selects an operable EIU to provide data to EFIS and EICAS
• Selects left, then center, then right
C –
• center EIU provides data to EFIS and EICAS
• if center EIU fails, automatic switching to an operable EIU is inhibited
R –
• right EIU provides data to EFIS and EICAS
• if right EIU fails, automatic switching to an operable EIU is inhibited
AUTO
C
EIU SEL
L
1 R
CENTER PANEL
April 01, 2001
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
15.10.4 D6-30151-425
Warning Systems -
Controls and Indicators
Display Select Panel
1 Cancel (CANC) Switch
Push –
• displays next page of caution and advisory messages when additional
pages exist
• cancels caution and advisory messages when last page displayed; warning
and memo messages remain displayed
• cancels red box for any engine parameter previously exceeded when
displayed parameter no longer exceeds the limit
2 Status (STAT) Display Switch
Push – displays status display on secondary EICAS.
Subsequent pushes –
• display next page of status messages when additional pages exist
• secondary EICAS blanks when last status message page displayed
3 Recall (RCL) Switch
Push –
• redisplays all caution and advisory EICAS messages, when respective
non-normal condition exists
• displays first page of messages when multiple pages exist
• redisplays red box for parameters previously exceeded
• displays RECALL indication for one second after switch released
GLARESHIELD
ENG STAT
ECS
HYD DRS GEAR
CANC RCL
ELEC FUEL
3
2
1
April 01, 2001
747 Operations Manual
Warning Systems -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
D6-30151-425 15.10.5
GPWS Alerts on PFD
1 Alert on PFD
PULL UP (red) – GPWS PULL UP alert is occurring.
WINDSHEAR (red) –
• GPWS WINDSHEAR alert is occurring
• all other GPWS alerts inhibited
MasterWARNING/CAUTION Reset Switches and Lights
1 MasterWARNING/CAUTION Reset Switch
Push –
• extinguishes master WARNING lights
• extinguishes master CAUTION lights
• silences the aural alert that accompany the EICAS warning messages:
• CABIN ALTITUDE
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