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PLT346: Primary Flight Controls

What code PLT346 covers, why the FAA tests it, and how to study Primary Flight Controls before your checkride.

Updated September 2026 · Learning statement code · Pilot / Instructor

Official FAA learning statement

Recall primary / secondary flight controls - types / purpose / functionality / operation

What this means for your checkride

The primary flight controls, ailerons, elevator (or stabilator), and rudder, move the airplane about its three axes: roll, pitch, and yaw. They work by changing the camber or angle of a surface to deflect airflow, and they are designed so the airplane responds predictably and tends back toward stable flight.

The primary controls are the foundation of maneuvering, so the FAA tests which surface controls which axis and how they work.

The common trap

Pilots think more deflection always means more control. At low airspeed the controls are less effective, and past the critical angle of attack aileron can aggravate a stall, which is why rudder coordinates the recovery.

Where to study it

FAA source
Pilot's Handbook of Aeronautical Knowledge, Aerodynamics of Flight chapter, flight controls
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.