CAA NZ AME Electrical study plan
CAA NZ AME Electrical · Give each week a clear focus.
8 weeks · About 6 hours per week
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
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
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
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
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
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
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
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