CAA NZ AME Electrical study materials
CAA NZ AME Electrical study resources

CAA NZ AME Electrical study plan

CAA NZ AME Electrical · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Electrical fundamentals

  • Define voltage, current, resistance, power and energy, and state the SI unit and symbol for each without notes

  • Apply Ohm's law and the power equation to solve at least fifteen series and parallel DC circuit problems, showing working

  • Calculate equivalent resistance for mixed series-parallel networks and explain how current and voltage divide in each branch

  • Describe the magnetic field around a current-carrying conductor and state Faraday's and Lenz's laws in your own words

Your checkpoint

A handwritten or typed formula sheet plus a worked solutions log of 15 DC circuit problems, self-marked with errors annotated

Week 2

Electrical fundamentals

  • Explain the behaviour of resistors, capacitors and inductors in DC and AC circuits, including reactance and phase relationship

  • Sketch and label a sine wave, defining peak, RMS, average, period and frequency, and convert between them

  • Compare single-phase and three-phase supply, and explain why aircraft AC systems commonly use 400 Hz

  • Describe the construction and operating principle of a transformer and a basic DC machine

  • Interpret simple AC circuit diagrams containing R, L and C combinations

Your checkpoint

A one-page summary diagram set covering AC waveforms, RLC behaviour and 400 Hz rationale, checked against at least two references

Week 3

Electrical systems and components

  • Identify the function and typical location of the main aircraft electrical components: battery, starter-generator, contactors, relays, circuit breakers and bus bars

  • Explain the operating principle of lead-acid and nickel-cadmium batteries and state their care, servicing and state-of-charge checks

  • Describe how a relay and a contactor differ and trace a simple control circuit through a relay coil and contact set

  • Explain the purpose and operation of a voltage regulator and an overvoltage protection device

  • Interpret a simple aircraft DC schematic and identify each component symbol correctly

Your checkpoint

An annotated component identification sheet of at least 20 symbols and components with function notes, plus one traced schematic

Week 4

Electrical systems and components & Aircraft electrical power generation and distribution

  • Describe the construction and operation of DC generators and alternators, including commutation and rectification

  • Explain the constant-frequency and variable-frequency generation options used on aircraft and their trade-offs

  • Trace power flow from generator through bus bar, distribution and protection to a representative load

  • Explain split-bus and parallel generator operation, including load sharing and reverse-current protection

  • Describe external power and emergency power sources and when each is used

Your checkpoint

A hand-drawn power generation and distribution block diagram for a representative aircraft, labelled with protection devices and annotated in at least 200 words

Week 5

Aircraft electrical power generation and distribution

  • Explain the purpose of bonding and the difference between primary and secondary bonding

  • Describe wire selection criteria: current rating, voltage drop, temperature rating, insulation type and bundling derating

  • Identify standard wire identification marking methods and explain how to read a wire number

  • Describe connector types, contact crimping, insertion and extraction, and the checks made after termination

  • Explain the purpose of shielding, grounding and lightning protection in aircraft wiring

Your checkpoint

A wiring standards reference card covering wire marking, derating and termination checks, produced from memory then corrected against references

Week 6

Aircraft wiring, bonding and testing

  • Describe continuity, insulation resistance and bonding resistance tests, including typical instruments and acceptable practice

  • Explain how to perform and record a bonding resistance check and why test-lead resistance matters

  • Outline the safety precautions for working on aircraft electrical systems, including lockout, capacitor discharge and battery isolation

  • Describe inspection and testing of wiring for chafing, arcing damage and corrosion, and the corrective actions

  • Explain how to interpret a wiring diagram to locate a fault in a simple circuit

Your checkpoint

A written test procedure for one continuity, one insulation resistance and one bonding check, including pass criteria and recording fields

Week 7

Aviation regulations, maintenance documentation and human factors

  • Locate and explain the role of the applicable NZ civil aviation rules and advisory material for aircraft maintenance

  • Describe the purpose and correct completion of a maintenance record, work card and certification entry

  • Explain the meaning and limits of an AME's certification privileges and the role of an approved maintenance organisation

  • Identify the main human factors categories (fatigue, complacency, distraction, pressure, communication) and give an aviation electrical example of each

  • Describe the error-management tools used in maintenance, such as inspection steps, dual sign-off and task briefing

Your checkpoint

A completed sample work card and certification entry exercise, plus a one-page human factors case note on an electrical maintenance error chain

Week 8

Electrical fundamentals & Electrical systems and components & Aircraft electrical power generation and distribution & Aircraft wiring, bonding and testing & Aviation regulations, maintenance documentation and human factors

  • Sit a full-length timed practice paper across all five domains and record the score per domain

  • Re-teach the two weakest domains from your own notes and re-attempt missed questions

  • Recite the key formulas, protection device functions and wiring standards from memory in a ten-minute self-test

  • Review your error log and confirm every previously missed item can now be explained aloud

Your checkpoint

A domain-by-domain score record from the practice paper with a written remediation list and evidence that each weak area was re-tested

Milestones

Week 2: Solve five unseen mixed DC/AC problems cold and score at least 80 percent, with all working shown

Week 4: Reproduce the generation and distribution block diagram from memory with all protection devices correctly placed

Week 6: Write the three test procedures without notes and state each pass criterion correctly

Week 7: Complete a sample certification entry with no omissions of required fields

Week 8: Achieve at least 75 percent overall on the timed practice paper with no domain below 60 percent