Definition
A scan error in which a pilot stares at a single instrument for too long instead of moving the eyes systematically across the full instrument panel. The fixed gaze prevents the cross-check needed to detect changes in pitch, bank, heading, or altitude on the other instruments.
Plain English
Locking your eyes onto one instrument and forgetting to check the others. While you are staring at one gauge, the airplane may be quietly drifting off altitude, heading, or attitude on the gauges you are not looking at.
Context Anchor
Seen in instrument flying discussions about scan technique, especially when correcting pitch during straight-and-level flight.
Derivation
From the Latin 'fixus,' meaning 'fastened' or 'held in place.' A fixation is the eyes being 'fastened' to one spot — useful in everyday speech, but a problem on instruments where the eyes need to keep moving.
Why Pilots Care
Fixations break the instrument scan, allowing unnoticed changes in pitch, airspeed, or altitude that can lead to loss of control or deviation from assigned flight parameters.
Intuition Check
Fixations do not mean the instruments are stuck. They mean the pilot’s attention is stuck on one instrument or problem too long.
Example Sentence 1
The instructor noted that the student's altitude was drifting because of a fixation on the attitude indicator.
Example Sentence 2
Effective instrument cross-check prevents fixations that disrupt pitch and altitude control.