Airworthy Prep

Score report lookup

Commercial Pilot Airplane test codes, explained

Your FAA knowledge test report lists a code like CA.I.A.K1 for each area where you missed a question. Type or paste one below to see what it means, in the FAA's own words.

Source: FAA-S-ACS-7B, Commercial Pilot for Airplane Category ACS (November 2023, effective May 31, 2024). Used on: Commercial Pilot Airplane (CAX), Commercial Pilot Airplane Canadian Conversion (CCP).

All of them at once is fine, with commas, spaces or line breaks, in any case. You get a study plan grouped by subject. Nothing is sent anywhere: it runs in your browser.

I. Preflight Preparation

II. Preflight Procedures

III. Airport and Seaplane Base Operations

IV. Takeoffs, Landings, and Go-Arounds

V. Performance Maneuvers and Ground Reference Maneuvers

VI. Navigation

VII. Slow Flight and Stalls

VIII. High-Altitude Operations

IX. Emergency Operations

X. Multiengine Operations

XI. Postflight Procedures