IFD500 Series Pilot Guide
7-26 General
The <name> custom timer has expired (see page 5-9). This
message will persist until the timer has been manually reset.
TIS traffic communications have ceased for more than 6
seconds but less than 12 seconds
Traffic sensor failed to start self-test
If the problem persists, contact a local dealer for service.
Traffic sensor altitude unavailable
If the problem persists, contact a local dealer for service.
The aircraft is climbing through 250 feet below the transition
altitude xxx as defined in the Setup Page. The message is
displayed for 5 seconds and then removed. It will not be
enabled for display again until the aircraft has descended
more than 500 feet below the transition altitude.
The aircraft is descending through 250 feet above the
transition level xxx as defined in the Setup Page. The
message is displayed for 5 seconds and then removed. It
will not be enabled for display again until the aircraft has
climbed more than 500 feet above the transition level.