Definition
Differences in how the same flight information is displayed across separate avionics units in the cockpit, such as variations in symbols, colors, label placement, or scale between one display and another. These inconsistencies occur when equipment from different manufacturers, or different generations of equipment, are installed side by side and do not present data in the same way.
Plain English
When two screens or instruments in the cockpit show the same kind of information but display it differently, so the pilot has to mentally reconcile what each one is showing.
Context Anchor
Seen when comparing a loaded instrument procedure on a GPS or flight display with the published chart, especially during preflight planning or an approach briefing.
Derivation
Visual comes from a Latin word meaning “to see.” Inconsistency means “not agreeing” or “not staying the same.” Together, the phrase points to a mismatch in what the pilot sees, not necessarily a mismatch in the actual flight path.
Why Pilots Care
These differences can cause momentary confusion or misreading of critical data during instrument flight, raising the chance of errors.
Intuition Check
Do not assume a visual inconsistency automatically means the avionics are wrong. It means the information does not look the same, so the pilot must verify that the correct procedure and points are loaded.
Example Sentence 1
The pilot noted several visual inconsistencies between the primary flight display and the standby instrument, including different color codes for the same warnings.
Example Sentence 2
Training materials highlight visual inconsistencies so pilots remain aware when switching between rental aircraft with different panel layouts.