
1. OPERATIONAL OVERVIEW
1-97
1.52
Alerts
1.52.1
What is an alert?
“Alert” is a generic name for a notice to any unusual or potentially dangerous situation
generated within the system.
For detailed information regarding specific alerts and alert codes, including possible
remedies, see "ALERT CODES, MESSAGES & MEANINGS" on page AP-11.
Alerts are classified according to priority and category.
Alert priority
The level of priority, from highest to lowest, is ALARM
o
WARNING
o
CAUTION. For
detailed information regarding specific alerts and alert codes, including possible rem-
edies, see "ALERT CODES, MESSAGES & MEANINGS" on page AP-11.
Note:
All active-unacknowledged warnings, except ANCHOR WATCH, are repeated
as warnings after 60 seconds (manufacturer’s fixed time period). The ANCHOR
WATCH alert is escalated from warning level to alarm level if it is not acknowledged
within 60 seconds.
Alert category
An alert is further classified by category, A, B or C, according to its degree of severity
or source.
1.52.2
How to interpret the [ALERT] box
When an alert condition is found, the applicable alert message appears in the [ALERT]
box. A buzzer sounds for alarm and warning alerts. The [ALERT] box is composed of
three lines of text information, and several icons, as shown below.
When an Alarm or Warning level alert is released, the alert message flashes in the
[ALERT] box. The message is accompanied by the appropriate alert icon and the
buzzer sounds. The buzzer and alert continue to flash and sound until the buzzer is
silenced or the alert condition is rectified.
The alert also appears in the [ALERT LIST] (see section 1.52.5) until acknowledged
and rectified.
Category
Description
A
Category A alerts include alerts indicating
• Danger of collision
• Danger of grounding
B
Category B alerts are alerts where no additional information for decision
support is necessary. Category B alerts are all alerts not falling under
category A.
C
Engine-related alert
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SIGNAL
A W C
Buzzer silence icon
Alert list/log button
Alert name/description
Alert number
Alert icon
“Active alert” icons
Summary of Contents for FAR-2218
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