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PLT099: Aeromedical Factors

What code PLT099 covers, why the FAA tests it, and how to study Aeromedical Factors before your checkride.

Updated September 2026 · Learning statement code · Pilot / Instructor

Official FAA learning statement

Recall aeromedical factors - scanning procedures

What this means for your checkride

Effective visual scanning for traffic means moving your eyes in small, deliberate steps across the sky rather than sweeping continuously, because the eye can only focus and detect movement when it pauses. A common technique divides the windscreen into segments and pauses on each.

See-and-avoid depends entirely on an effective scan, so the FAA tests the correct scanning method and the eye limitations, like empty-field myopia, that defeat a casual glance.

The common trap

Pilots think a smooth sweep of the horizon covers it. The eye only detects a target during the brief stops, so a continuous sweep can miss converging traffic that appears motionless on a collision course.

Where to study it

FAA source
Pilot's Handbook of Aeronautical Knowledge, Aeromedical Factors chapter, vision and scanning
Read Pilot's Handbook of Aeronautical Knowledge on Aviator IQ →
Before your checkride (14 CFR 61.39)

A code on your test report is an area of deficiency. An authorized instructor must review it with you and endorse that review before you take the practical test, and the examiner may revisit it during the oral. Study it until you can explain it out loud, not just recognize the answer.