APPENDIX 3 ALERT CODES, MESSAGES AND MEANINGS
AP-16
272 UTC Warning
Cat: B
UTC error. No date or time data received for thirty
seconds.
Remedy: Press the ALERT ACK key. Restore the signal to remove this indication.
380 AIS RECEIVE Warning
Cat: B
No AIS data received for thirty seconds.
Remedy: Press the ALERT ACK key. Check power and connection to AIS unit.
472 POSN SOURCE CHANGE Caution
Cat: B
Message: "POSN SOURCE CHG"
Meaning: Positioning sensor input lost, automati-
cally changed sensors.
Remedy: Press the ALERT ACK key. The indication is automatically removed when the signal is re-
stored or a different sensor is selected.
476 SPD SOURCE CHANGE Caution
Cat: B
Message: "SPD SOURCE CHG"
Meaning: Speed sensor input lost, automatically
changed sensors.
Remedy: Press the ALERT ACK key. The indication is automatically removed when the signal is re-
stored or a different sensor is selected.
485 DEPTH Warning
Cat: B
Depth is below set threshold.
Remedy: Press the ALERT ACK key. Confirm depth. Adjust [DEPTH] settings as required.
495 ANCHOR WATCH Warning
Cat: B
Ship position outside set anchor watch zone.
Remedy: Press the ALERT ACK key. Confirm Own Ship location and adjust as necessary.
541 TRANSMIT ERROR Caution
Cat: B
Unable to transmit AIS binary message.
Remedy: Press the ALERT ACK key. Check power to AIS unit.
542 AIS TRANSMITTING Caution
Cat: B
Transmitting AIS message.
Remedy: Press the ALERT ACK key. No other action required.
560 ASSOCIATION Caution
Cat: B
One or more sets of associated targets is dis-
played.
Remedy: Press the ALERT ACK key. Set [ASSOCIATION] to [OFF].
740 EXT RADAR NO SIGNAL Warning
Cat: B
Externally connected radar has an error. (Only dis-
played when Interswitch is active.)
Remedy: Press the ALERT ACK key. Restore the external radar to normal operating condition.
750 EXT RADAR COM ER-
ROR
Caution
Cat: B
Communication with external radar interrupted or
lost. (Only displayed when Interswitch is active.)
Remedy: Press the ALERT ACK key. Check connection and power to the external radar.
790 ARRIVAL Warning
Cat: B
Ship has entered the destination arrival alert zone.
Remedy: Press the ALERT ACK key. No other action required.
791 XTE Warning
Cat: B
Cross-track error, ship is off-course.
Remedy: Press the ALERT ACK key. Check course and adjust as necessary.
950 BAM COM ERROR Caution
Cat: B
Communication the Bridge Alert Management
System interrupted.
Remedy: Press the ALERT ACK
key. Check connection to BAM. Check power to BAM.
Alert
code
Alert title
Priority &
Category
Explanation
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