But in the event we lined up on a different runway--or one that was too short for our entered performance profile--the system would annunciate
a "check runway" or "runway too short" aural alert and visual message on the PFD.
Normally they will annunciate
"LNAV" and flash a message "Approach Downgrade" if they can't offer WAAS accuracy but still have acceptable GPS position.
The GPS annunciates
the highest level of service supported by the WAAS signal, the receiver, and the selected approach.
If someone got too close to a painting, an alarm would annunciate
in the security office.
If your GPS supports LPV, it will never annunciate
LNAV/VNAV on this approach because they require the same level of WAAS integrity.
They not only annunciate
alarm and trouble conditions but also indicate low battery conditions, tampering, and frequency jamming.
The navigator does not sequence to the next waypoint in the approach, but annunciates SUSP and continues to provide guidance along the same course as the final approach segment, extended out into infinity.
With WAAS navigators, the unit will also annunciate SUSP, but will stay this way until the OBS button is pressed again.
In the lower left screen, the receiver annunciates
LNAV+V, L/VNAV or LPV for the three categories.
The receiving unit annunciates
the status of the line supervision and alarm monitoring equipment with audible and visual indicators.
Once the gear is down and locked, it annunciates
that, too, but just once and in a sonorous airline-captain voice that reminds of us of a guy who's relaxed to the point that he sounds like he's had a couple.
While the TAS series annunciates
traffic position, some owners will still want to see the numbers and this is, after all, the point of having that expensive display in the first place.