Electrostatic Discharge (ESD) on the A&P Oral: AM.I.A.K24

October 25, 2026 · Primary sources checked October 25, 2026

The Federal Aviation Administration (FAA) handbook names electrostatic discharge (ESD) from the human body, when the device is handled, as one of the most frequent causes of damage to a solid-state component or integrated circuit. For the airframe and powerplant (A&P) oral and practical (O&P), explain both that handling hazard and the precautions in the source, rather than naming a wrist strap alone. Rehearse the explanation with a study partner before meeting the designated mechanic examiner (DME).

FAA-H-8083-30B, General (2023) — printed 12-5, PDF 446; Electrostatic Discharge (ESD) Considerations

What is the exact ACS element?

The FAA Aviation Mechanic Airman Certification Standards (ACS) wording is “AM.I.A.K24 Electrostatic discharge.” The FAA’s Frequently Missed Knowledge Test ACS Codes report, 2nd Quarter CY25, lists this code for the Aviation Maintenance Technician General (AMG) knowledge test at 74.91% missed for July 1, 2024, through June 30, 2025. This is the report’s knowledge-code statistic, not an O&P failure rate or a prediction of your result.

FAA-S-ACS-1 (November 1, 2021) — printed 2, PDF 7; General Subject A · Frequently Missed Knowledge Test ACS Codes — 2nd Quarter, CY25 — printed 1 (single-page report), PDF 1; AMG row; report period

Read the FAA report context

Open the AM.I.A.K24 element page

How could you say it to the DME?

Use this as practice wording, then check the source in your own voice: “Static discharge from my body can damage sensitive electronics when I handle them, including by touching connector pins.” “The handbook describes discharging body static by touching the removed box chassis, wearing a grounding wrist strap, and handling components professionally.” “It also describes connector caps, avoiding damaging environments, and specially designed protective bags.”

FAA-H-8083-30B, General (2023) — printed 12-5, PDF 446; ESD Considerations

Which parts and handling situations does the source identify?

The handbook says careless handling of line replaceable units (LRUs), circuit cards, and discrete components can cause unnecessarily time-consuming and expensive repairs. It adds that the top of a carpet-covered toolbox can be another ESD source. Its handling guidance includes protective caps over open connectors and keeping sensitive components out of damaging environments. ESD-sensitive parts are typically shipped in specially designed bags that protect against electrostatic damage.

FAA-H-8083-30B, General (2023) — printed 12-5, PDF 446; ESD Considerations

Advisory Circular (AC) 43.13-1B, paragraph 12-2, adds a caution: proper gloves, finger cots, or grounding bracelets should be used to prevent damage from excessive electrostatic discharge. The same caution says to observe the standard procedures for handling equipment that contains ESD-sensitive devices or assemblies, following the recommendations and procedures in the equipment manufacturers’ maintenance instructions.

AC 43.13-1B with Change 1 — printed 12-1, PDF 610; paragraph 12-2, Handling of Components

All seven additional electronic-component precautions

The handbook’s ESD section continues onto the next page; do not stop reading at the wrist-strap paragraph. These are the handbook’s precautions, summarized for oral study, not a substitute for the applicable equipment and aircraft instructions.

• Always connect a ground between the test equipment and circuit before trying to inject or monitor a signal.
• Do not exceed the maximum allowable test voltage for the circuit components and transistors.
• Ohmmeter ranges that require a current of more than one milliampere in the test circuit should not be used for testing transistors.
• When soldering is required, the heat applied to a diode or transistor should be kept to a minimum by using low-wattage soldering irons and heat sinks.
• Do not pry components of a circuit board.
• Remove power from a circuit before replacing a component.
• When test points are close together, keep exposed test-probe leads as small as possible to prevent shorting.

FAA-H-8083-30B, General (2023) — printed 12-5, PDF 446; precautions 1–3 · FAA-H-8083-30B, General (2023) — printed 12-6, PDF 447; precautions 4–7

Our O&P study check

Read printed pages 12-5 and 12-6 together; cover them and explain the damage mechanism, the listed parts, the handling measures, and the additional precautions. Reopen both pages and check every limitation, including “typically” for the shipping bags and the condition about closely spaced test points. Do not invent a humidity limit, wrist-strap resistance, discharge-voltage threshold, or aircraft-specific procedure that this section does not give.

Practice an explanation out loud

DMEReady is an artificial intelligence (AI) voice examiner for the A&P oral: you answer out loud in your phone or computer browser, and it asks follow-up questions the way a designated mechanic examiner (DME) would. It is an AI examiner, not a human DME; it rehearses the oral and does not train hands-on practical skills. The first drill is free, with no sign-up, and the session report shows what you covered, what you missed, what a complete answer includes, and where to read in the FAA handbooks. DMEReady is independent and is not affiliated with or endorsed by the FAA.

Related guides

• Aircraft Electricity Oral Exam Questions and Answers

For examiner fees and planning, read the DME exam cost guide.

Primary sources

• FAA-S-ACS-1 (November 1, 2021)
• FAA-H-8083-30B, General (2023)
• Frequently Missed Knowledge Test ACS Codes — 2nd Quarter, CY25
• AC 43.13-1B with Change 1

About this guide: drafted with AI from the FAA sources listed on this page and checked claim by claim against them. Not reviewed by an A&P mechanic or DME. How we make our guides