ACS codes · General · Regulations, Maintenance Forms, Records, and Publications
AM.I.I.K18 · Knowledge
Alert, caution, and warning indications; and the basic definition of warnings, cautions,…
Updated October 25, 2026 · element text from the FAA Aviation Mechanic ACS (FAA-S-ACS-1)
Practice AM.I.I.K18 out loud, free
What the ACS says
Alert, caution, and warning indications; and the basic definition of warnings, cautions, and notes that are
A sample oral question on this element
“What do the standardized annunciator panel colors tell the pilot?”
Study source: FAA-H-8083-31B (Aviation Maintenance Technician Handbook, Airframe), chapter 10, pages 10-73, 10-74
If this code is on your test report
Your Airman Knowledge Test Report (AKTR) lists an ACS code for every knowledge area you missed on the written test. On the A&P oral, each of those codes adds one question to that section, on top of a minimum of four random questions (FAA Mechanic Test Generator FAQ). So if AM.I.I.K18 is on your AKTR, expect the examiner to ask about it. More on how codes turn into oral questions: A&P ACS codes: know your codes before the oral.
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