Airworthy Prep

Flight Instructor Airplane test code

AI.III.C.K3dPreflight Preparation: Weather Information

Flight Instructor Airplane test standard, area of operation III, task C

Written as ai.iii.c.k3d or AI.III.C.K3d on your score report.

The FAA's wording

Meteorology applicable to the departure, en route, alternate, and destination under visual flight rules (VFR) in Visual Meteorological Conditions (VMC), including expected climate and hazardous conditions such as:

Moisture/precipitation.

FAA-S-ACS-25, Flight Instructor for Airplane Category ACS (November 2023, effective May 31, 2024), III. Preflight Preparation, Task C. Weather Information

What it means

AI.III.C.K3d is a knowledge element in the Preflight Preparation area of operation of the Flight Instructor Airplane test standard. A knowledge element is something the FAA expects you to know, and the written test asks questions on it.

AI
Flight Instructor Airplane ACS
III
Area of operation III: Preflight Preparation
C
Task C: Weather Information
K3d
Part (d) of knowledge element 3

Seeing it on your score report

Your Airman Knowledge Test Report lists a code for each area where you missed a question. Seeing AI.III.C.K3d there means at least one of your wrong answers was on this element. If you are taking the practical test next, expect the examiner to ask about it. Retaking the written? Start with this code and the others on your report.

Sources: FAA-S-ACS-25, Flight Instructor for Airplane Category ACS (November 2023, effective May 31, 2024); FAA Airman Knowledge Testing Matrix (revised 9/25/26), p. 2.

Can be printed on 2 tests
  • Flight Instructor Airplane (Added Rating) (AFA)
  • Flight Instructor Airplane (FIA)

Got more than one code on your report?

Paste them all into the free study planner and it groups them by subject, most missed first.