*
Anti-ice indication
*
Pressurization indications
*
Alerting and other annunciation messages
*
Engine in-flight start envelope
*
Gear position
*
Flap position
*
Fuel data.
TAT and Assumed Temperature
TAT shows above the EPR scales in white. Assumed temperature shows above the EPR scale in green when a request is made from the CDU thrust limit page. Assumed temperature is for reduced thrust takeoffs.
Thrust Limit Mode Annunciations
The thrust limit mode annunciation shows in green above and between the EPR scales.
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Thrust Reverser Indication
REV shows above each engine EPR actual readout when the thrust reverser is in transit or the extended position. The indication temporarily overrides the primary thrust reference readout. The REV readout is amber when the thrust reverser is in transit and is green when the thrust reverser is fully extended.
Engine Parameters
The engine parameters show in a round dial format in a vertical column. EPR shows first, then N1 and EGT. Each parameter has a digital readout and an analog round dial.
EPR
The EPR scale starts at an EPR minimum (3 o’clock position). EPR maximum shows at the 210 degree position. A pointer and the gray shading behind the pointer shows the actual EPR. An amber bar at the upper end of the scale shows EPR maximum. Digital readouts for EPR show above the round dials. EPR command shows as a white sector that moves around the EPR scale. The reference EPR shows as a green digital readout above the actual EPR box.
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Anti-Ice Indication
A green engine anti-ice (EAI) indication shows next to the N1 scale when the engine anti-ice valve is open. The wing anti-ice (WAI) indication shows near the bottom of the N1 scale when the wing anti-ice valve is open.
N1 and EGT
N1 and EGT also show in a round dial format. A pointer and a gray scale show the actual values. Redline limits, amber band and amber band limits show on the scales. The reference N1 readout and bug, N1 maximum line, and N1 command show during alternate mode operation. Digital readouts for N1 and EGT show above the analog dials.
When an engine exceedance occurs, this data changes from white to red or amber:
*
Scale
*
Digital readout
*
Digital readout box
*
Fill area.
For redline exceedances, the box around the digital readout stays red after the exceedance goes away.
The CANC/RCL switch removes or shows the exceedance indication.
The engine exceedance maintenance page shows the exceedance information and controls the data. Both N1 and EGT show exceedances when they occur.
ATC Datalink Message Field
An ATC message shows in the communication message field at the bottom left corner of EICAS when there is an ATC uplink.
If ECS information shows the ATC text shows above it.
If the EICAS display is not in the compacted format, ATC message text shows in the ATC datalink message field.
The ATC datalink message field has a maximum of 30 characters across. It also has:
*
A maximum of 5 lines of text
*
1 line for accept, reject, cancel, and time information.
Pressurization Indications
Pressurization indications show below the EGT scales when an associated crew alert message shows or a parameter exceedance occurs. The data shows for the length of the condition when no AIR synoptic shows. The data includes:
*
Duct pressure
*
Cabin altitude
*
Cabin rate
*
Cabin differential pressure
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*
Outflow valves
*
Landing altitude.
Any non-normal condition shows in red or amber.
Alerting and Other Annunciation Messages
These crew alerting and annunciation messages show on the right side of the display:
*
Warning
*
Caution
*
Advisory
*
Communication
*
Memo.
The messages show by priority and in chronological order. The message field shows eleven messages. When more than eleven messages exist, a white page number shows.
A small box shows adjacent to these messages when there is a non-normal checklist with the message:
*
Warning
*
Caution
*
Advisory.
The small box goes away when electronic checklists are on and the checklist for the message is complete.
STATUS Cue and RECALL Annunciation
The STATUS cue shows when the PDS makes a new status message and the status page is not showing. The STATUS cue goes away when the operator selects the status page or when the condition that causes the status message goes away. The STATUS cue is cyan. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：777 AMM 飞机维护手册 指示和记录系统 2(36)
