PRIMARY DISPLAY SYSTEM -CREW ALERT MESSAGES
The most recent caution message shows at the top of the caution messages and below any existing warning messages.
The first push of the cancel/recall switch removes caution messages from the display. The second push returns the messages to the display if they are still active.
The master caution light reset switch cancels the master caution light and the caution aural. The message remains on the display until the condition that caused the message goes away.
Caution messages are left justified and have a maximum of 20 characters.
Advisory Messages
Advisory messages have a relation to an operational or airplane condition that requires crew awareness. Advisory messages are amber.
The most recent advisory message shows at the top of any advisory messages and below any existing warning or caution messages.
The first push of the cancel/recall switch removes advisory messages from the display. The second push returns the messages to the display if they are still active.
EFFECTIVITY
BEJ ALL
Advisory messages are left justified with the first space blank. They have a maximum of 19 characters.
Comm Messages
Comm messages alert the flight crew to new messages. The messages may affect the FMCS functions and advise the crew to check the CDU scratch pad. They may also affect the flight deck communication function (FDCF) and alert the crew to check the FDCF displays. Comm messages may also affect the cabin management system (CMS).
There are two levels of comm messages:
*
Comm medium
*
Comm low.
Comm medium messages identify an incoming communication request which requires immediate crew awareness and prompt crew acknowledgment. Comm medium messages are white and are associated with a hi-lo chime.
Comm medium messages are left justified, 20 characters long and the first character is a bullet.
Comm low messages identify an incoming communication request which requires timely crew awareness and timely crew acknowledgment. Comm low messages are white.
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PRIMARY DISPLAY SYSTEM -CREW ALERT MESSAGES
Comm low messages are left justified, 19 characters long and the first character is blank. The second character is a bullet.
To cancel a comm or FMC message, use the accept switch on the glareshield panel. Or use the appropriate datalink page of the CDU or MFD to accept the uplink.
Memo Messages
Memo messages remind the crew of certain manually selected normal conditions. Memo messages are white.
Memo messages are left justified and 20 characters long.
To cancel a memo message remove the condition to cause it to show.
The highest priority memo message shows at the bottom of the display below any existing comm messages.
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PRIMARY DISPLAY SYSTEM -EICAS INHIBITS SUMMARY
General
EICAS inhibits remove invalid messages and also remove the caution visuals and aural tones during the maintenance period and during certain airplane and flight conditions.
Message Inhibits
These are the six types of EICAS message and caution inhibits:
*
Engine start inhibit (ESI)
*
Starter cutout inhibit
*
Message inhibit
*
General inhibit
*
Flight phase inhibits
*
Master caution and caution aural tone inhibits.
Engine Start Inhibit
The engine start inhibit prevents some of these messages and alerts during an engine start sequence:
*
Caution
*
Advisory
*
Memo
*
Status.
The engine start inhibit prevents automatic electrical bus load shedding and bus transient annunciations that may occur due to generator switching during an engine start.
EFFECTIVITY
BEJ ALL
Starter Cutout Inhibit
When a starter cutout condition occurs, the STARTER CUTOUT caution message replaces these existing messages:
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