NCAA AME Avionics study materials
NCAA AME Avionics study resources

NCAA AME Avionics study plan

NCAA AME Avionics · Give each week a clear focus.

8 weeks · About 7 hours per week

Week 1

Avionics systems and aircraft electrical/electronic maintenance (subject area not enumerated by the source)

  • Map the aircraft electrical system from bus to load: identify DC/AC generation, distribution buses, circuit protection, and bonding/grounding return paths on a typical transport-category aircraft wiring diagram you draw yourself.

  • Explain in writing how a split-bus or parallel-bus architecture isolates faults and how a bus tie or contactor changes the available power sources after a generator drops offline.

  • Practice reading avionics wiring diagrams to trace a single signal from sensor to display unit, noting connector pinouts, shielding, and twisted-pair conventions.

  • List the standard hand tools and test equipment used for avionics line maintenance (multimeter, bonding meter, crimpers, insertion/extraction tools) and state one misuse risk for each.

Your checkpoint

A hand-drawn or self-made block diagram of a two-generator DC distribution system with a one-page written fault-isolation walkthrough for a single generator failure.

Week 2

Avionics systems and aircraft electrical/electronic maintenance (subject area not enumerated by the source)

  • Describe the operating principle and failure modes of at least four avionics line-replaceable units (for example VHF transceiver, air data computer, attitude heading reference system, transponder) and the inputs/outputs each depends on.

  • Explain the difference between ARINC 429, ARINC 629, and Ethernet-based avionics data buses in terms of topology, data rate, and troubleshooting approach.

  • Outline the electromagnetic interference and shielding practices (bonding resistance limits, shield termination, separation of power and signal routing) that govern avionics wiring installation.

  • Draft a logical troubleshooting sequence for an intermittent radio fault that separates antenna/feedline, power, data bus, and LRU causes before any part is swapped.

Your checkpoint

A one-page troubleshooting flowchart for an intermittent VHF communication fault, with the test point and expected reading at each decision node.

Week 3

Avionics systems and aircraft electrical/electronic maintenance (subject area not enumerated by the source) & Airworthiness requirements and regulations applicable to avionics maintenance (subject area not enumerated by the source)

  • Connect each avionics maintenance task you performed in weeks 1-2 to the specific airworthiness requirement it serves (continued airworthiness, approved data, return to service).

  • Distinguish between type certificate data, supplemental type certificates, and field approvals, and state which one authorizes a given avionics modification.

  • Identify what counts as approved data for an avionics alteration versus what is acceptable data, and explain why the distinction matters before signing anything.

  • Summarize the minimum equipment list and configuration deviation list logic for deferring an inoperative avionics item, including who authorizes the deferral.

Your checkpoint

A comparison table of three avionics changes (antenna swap, new transponder installation, software update) listing the approval basis, required documentation, and return-to-service action for each.

Week 4

Airworthiness requirements and regulations applicable to avionics maintenance (subject area not enumerated by the source)

  • Explain the airworthiness directive compliance process for avionics: how to determine applicability by serial number and model, how to record compliance, and what to do when a directive is not yet accomplished.

  • Describe the role of service bulletins, service letters, and manufacturer instructions for continued airworthiness, and distinguish mandatory from recommended actions.

  • Outline the requirements for an approved maintenance organization and how its procedures interact with an individual AME's certification privileges.

  • Explain the process for reporting a major defect or unairworthy condition and the timeline and recordkeeping that follow.

Your checkpoint

A written compliance worksheet for one hypothetical avionics airworthiness directive, showing applicability check, method of compliance, recording entry, and a note on what makes the aircraft unairworthy if not done.

Week 5

Maintenance records, inspection and certification of avionics work (subject area not enumerated by the source)

  • Draft a complete maintenance record entry for avionics work that captures the work performed, reference to approved data, parts and serial numbers installed, and the certification statement.

  • Identify the records that must be retained, for how long, and who may sign them off for avionics line and base maintenance.

  • Explain the difference between a certification, an inspection, and a functional check, and state which avionics tasks require each before return to service.

  • Describe how to handle a discrepancy found during inspection: who documents it, how it is deferred or corrected, and what the record must show.

Your checkpoint

Three sample maintenance record entries (routine check, defect rectification, modification) written to the standard you would defend in an audit.

Week 6

Maintenance records, inspection and certification of avionics work (subject area not enumerated by the source) & Personnel licensing requirements for the AME licence (subject area not enumerated by the source)

  • Map the AME licence privileges and limitations to the certification actions you have been practicing, and identify which tasks you may sign for and which require supervision or a second signature.

  • Explain the difference between the licence, the type rating or authorization, and the employer's authorization to certify, and how each is obtained and maintained.

  • Outline the recency, currency, and continuing professional development expectations that keep an AME licence valid.

  • Describe the disciplinary and enforcement consequences of certifying work outside your privileges or without adequate inspection.

Your checkpoint

A personal privileges matrix listing ten avionics tasks with a yes/no/with-supervision column and the licence or authorization basis for each answer.

Week 7

Personnel licensing requirements for the AME licence (subject area not enumerated by the source) & Airworthiness requirements and regulations applicable to avionics maintenance (subject area not enumerated by the source)

  • Explain the pathway to AME licensing: prerequisite experience, examination requirements, practical assessment, and the role of the logbook or experience record.

  • Summarize the regulatory framework that governs the AME licence and how it interacts with the airworthiness requirements studied in week 4.

  • Describe the ethical and legal duties of a certifying AME when under commercial pressure to release an aircraft or component.

  • Review the distinction between maintenance, preventive maintenance, and alteration as those terms affect who may perform and certify the work.

Your checkpoint

A one-page written answer to a scenario in which a supervisor pressures you to certify an avionics repair without approved data, citing the specific regulatory basis for your refusal or conditional acceptance.

Week 8

Avionics systems and aircraft electrical/electronic maintenance (subject area not enumerated by the source) & Airworthiness requirements and regulations applicable to avionics maintenance (subject area not enumerated by the source) & Maintenance records, inspection and certification of avionics work (subject area not enumerated by the source) & Personnel licensing requirements for the AME licence (subject area not enumerated by the source)

  • Synthesize all four domains by working through three integrated scenarios that each require a technical diagnosis, a regulatory determination, a record entry, and a licensing decision.

  • Audit your own notes for gaps and produce a one-page summary sheet per domain for final review.

  • Complete a timed self-test of at least 60 questions across all domains, then analyze every miss by domain and root cause.

  • Rehearse the weakest two domains with targeted review until you can explain each key concept without notes.

Your checkpoint

A scored 60-question self-test with a written error analysis and a final one-page summary sheet for each of the four domains.

Milestones

Week 2: Can trace a signal path and explain a data bus failure without notes; troubleshooting flowchart is complete and self-consistent.

Week 4: Can state the approval basis and return-to-service action for any avionics change presented, and correctly apply an airworthiness directive to a hypothetical aircraft.

Week 6: Can write a defensible maintenance record entry and correctly classify ten tasks as within or outside your certification privileges.

Week 8: Scores at least 80 percent on the 60-question self-test with no domain below 70 percent, and error analysis shows each miss tied to a specific gap now closed.