Aeronautical Electrician Training

Lesson 1 • Capacitance and Dielectric Properties

Introduces capacitors, charge storage, and RC time constants. Relevant to filtering, timing circuits, and avionics power conditioning.

Lesson 2 • Series and Parallel Circuits

Analyses current paths and voltage distribution in series, parallel, and combination circuits. Directly applicable to aircraft bus and load circuit design.

Lesson 3 • Magnetism and Electromagnetism

Explains magnetic fields, electromagnetic induction, and their role in generators and motors. Bridges static theory to dynamic aircraft electrical components.

Lesson 4 • Voltage, Current, and Resistance

Defines and quantifies the three fundamental electrical quantities. Connects measurable values to real aircraft circuit behaviour.

Lesson 1 • External Power and Ground Support

Details ground power unit connection, polarity protection, and interlock systems. Ensures safe aircraft energisation during maintenance.

Lesson 2 • AC Power Systems in Aircraft

Explains AC generation, frequency control, and inverter use. Connects AC theory to avionics and high-power system requirements.

Lesson 3 • Electrical Load Analysis

Teaches load analysis methods to verify generator and bus capacity. Supports maintenance decisions and modification planning.

Lesson 4 • DC Power Generation and Distribution

Covers engine-driven generators, alternators, and bus bar distribution. Establishes how primary DC power is produced and routed throughout the airframe.

Lesson 1 • Connector Types and Termination

Examines circular, rectangular, and coaxial connectors with proper crimping and soldering techniques. Ensures reliable electrical connections in vibration-prone environments.

Lesson 2 • Splicing and Repair Techniques

Covers approved splice methods including heat-shrink and mechanical splices. Maintains circuit integrity during in-service wire repairs.

Lesson 3 • Wire Routing and Harness Fabrication

Teaches routing rules, separation requirements, and harness bundling techniques. Prevents chafing, interference, and fire hazards in installed wiring.

Lesson 4 • Wire Types and Selection Criteria

Covers MIL-spec wire families, insulation ratings, and ampacity tables. Enables correct wire gauge selection for any aircraft circuit.

Lesson 1 • Protection Coordination and Selectivity

Teaches coordination between upstream and downstream protection devices. Ensures fault isolation without unnecessary power loss to healthy circuits.

Lesson 2 • Circuit Breaker Operation and Types

Examines thermal, magnetic, and thermal-magnetic circuit breakers used in aircraft panels. Enables correct selection and resetting procedures.

Lesson 3 • Current Limiters and Bus Protection

Explains high-current limiters protecting bus tie connections and feeders. Prevents cascading failures across aircraft electrical buses.

Lesson 4 • Fuse Types and Applications

Covers fast-blow, slow-blow, and current-limiting fuses with aircraft-specific ratings. Connects fuse selection to circuit protection philosophy.

Lesson 1 • Switch Types and Ratings

Covers toggle, rocker, rotary, and microswitches with contact ratings. Connects switch selection to load type and environmental requirements.

Lesson 2 • Control Circuit Troubleshooting

Applies voltage injection and resistance measurement to isolate control circuit faults. Integrates schematic reading with hands-on diagnostic technique.

Lesson 3 • Latching and Time-Delay Relays

Examines bistable latching relays and time-delay circuits used in sequencing. Supports understanding of automated system logic in aircraft.

Lesson 4 • Schematic Reading and Circuit Tracing

Teaches interpretation of aircraft wiring diagrams and schematic symbols. Enables efficient fault isolation using manufacturer documentation.

Lesson 1 • Lighting System Fault Diagnosis

Applies systematic testing to isolate open circuits, short circuits, and failed components in lighting systems. Reinforces diagnostic skills from earlier chapters.

Lesson 2 • LED Technology in Aircraft Lighting

Introduces LED driver circuits, thermal management, and retrofit considerations. Addresses modern lighting upgrades and compatibility requirements.

Lesson 3 • Exterior Lighting Systems

Examines navigation, anti-collision, landing, and taxi lights with regulatory requirements. Establishes operational and installation standards for all exterior lights.

Lesson 4 • Warning and Caution Light Systems

Explains master warning, caution, and advisory annunciator systems. Enables technicians to test and verify correct annunciator logic.

Lesson 1 • Insulation Resistance Testing

Explains megohmmeter operation, test voltage selection, and pass/fail criteria. Detects insulation degradation before it causes in-flight failures.

Lesson 2 • Wire Fault Locators and TDR

Introduces time-domain reflectometry for locating opens, shorts, and chafes in long wire runs. Reduces diagnostic time on complex harnesses.

Lesson 3 • Oscilloscope Use in Aircraft Maintenance

Teaches waveform capture, triggering, and measurement of AC signals and transients. Enables diagnosis of generator ripple, bus noise, and signal faults.

Lesson 4 • Digital Multimeter Operation

Covers voltage, current, resistance, and diode test functions with proper probe technique. Foundation for all subsequent electrical measurement tasks.

Lesson 1 • Integrated Modular Avionics Power

Explains IMA cabinet power distribution, power supply modules, and thermal management. Supports maintenance of centralised avionics power architectures.

Lesson 2 • Fly-by-Wire Electrical Architecture

Examines redundant power supplies, data bus power, and flight control computer interfaces. Connects electrical reliability to flight safety in FBW aircraft.

Lesson 3 • System Integration and Final Verification

Applies end-to-end electrical system testing after major maintenance. Ensures all systems interact correctly before return to service.

Lesson 4 • Variable Frequency Power Systems

Covers variable-frequency AC generation used in modern transport aircraft. Addresses power quality, harmonic distortion, and load compatibility.

Lesson 5 • Electrical System Health Monitoring

Covers ACARS electrical reports, BITE data, and predictive maintenance indicators. Enables data-driven maintenance decisions on complex aircraft.