Airworthy PrepA&P General test code
AM.I.H.K13Mathematics
A&P General test (Section I), subject H
Written as am.i.h.k13 or AM.I.H.K13 on your score report.
The FAA's wording
Basic mathematic functions (addition, subtraction, multiplication, division).
What it means
AM.I.H.K13 is a knowledge element in the Mathematics subject of the A&P General test. A knowledge element is something the FAA expects you to know, and the written test asks questions on it.
- AM
- Aviation Mechanic, the mechanic test standard
- I
- Section I: General
- H
- Subject: Mathematics
- K13
- Knowledge element 13
Seeing it on your score report
Your Airman Knowledge Test Report lists an ACS code for each question you missed. Seeing AM.I.H.K13 there means at least one of your wrong answers was on this element. The examiner retests every code on your report during the oral part of the practical test, so study it before then.
Sources: Aviation Mechanic ACS Companion Guide, FAA-G-ACS-1 (Change 2), ch. 2, p. 11 and ch. 5, p. 19; FAA-S-ACS-1, Appendix 1, p. A-1.
The examiner will ask about the codes you missed
"All deficient knowledge areas, as indicated by the ACS codes on the AKTRs, are retested during the oral portion of the test."
Your oral test is 4 random questions plus one for every code on your report, closed book. Our A&P Oral & Practical course builds a mock oral from the codes you tick, with a model answer and FAA source for every question, and a guide for every practical project. $49.
See Oral & PracticalTry a sample question on AM.I.H.K13
A bolt has a shank length of 2 3/8 inches, of which 11/16 inch is threaded. What is the grip length (the unthreaded part of the shank)?
Practice mathematics
The full A&P General course has questions on every element in this subject area, with an explanation and FAA source for each.