Airworthy PrepFlight Instructor Helicopter test code
HI.XII.B.K4Special Operations: Pinnacle Operations
Flight Instructor Helicopter test standard, area of operation XII, task B
Written as hi.xii.b.k4 or HI.XII.B.K4 on your score report.
The FAA's wording
Situations when a pinnacle/platform approach, landing and takeoff is recommended and factors related to aircraft performance.
What it means
HI.XII.B.K4 is a knowledge element in the Special Operations area of operation of the Flight Instructor Helicopter test standard. A knowledge element is something the FAA expects you to know, and the written test asks questions on it.
- HI
- Flight Instructor Helicopter ACS
- XII
- Area of operation XII: Special Operations
- B
- Task B: Pinnacle Operations
- K4
- Knowledge element 4
Seeing it on your score report
Your Airman Knowledge Test Report lists a code for each area where you missed a question. Seeing HI.XII.B.K4 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-29, Flight Instructor for Rotorcraft Category Helicopter Rating 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 Helicopter (FRH)
- Flight Instructor Helicopter (Added Rating) (HFA)
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.