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Practical Aircraft Wiring

This FAA-accepted instruction focuses heavily on hands-on fundamentals for all A&P and Avionics Technicians. This course was designed with this concept: repairing wiring can be much more challenging than installing it in a new aircraft - therefore, the technician needs to be better prepared to perform a job in this area.

The course examines different electrical wires and cable types, various preparation and fabrication techniques (cutting, stripping, crimping, soldering, and tying), and installation issues (segregation, tie-wrapping, and chafing). The class also includes:

  • Nomenclature breakdown, deciphering, and labeling
  • Wiring and connector type identification
  • Aviation harness fabrication and installation requirements

14 CFR Part 121 regulations require significant Electrical Wiring Interconnect Systems (EWIS) training for all Technicians and Inspectors. The guidance used to identify and meet these training needs is in FAA Advisory Circular (AC) 120-94. This course addresses EWIS compliance concerns for Group 1 (Maintenance Personnel-Repairs), Group 2 (Inspection Personnel), and Group 4 (Maintainers-Removal & Installation of Equipment). We also discuss recent incidents, their causes, and the appropriate prevention.

Students will complete specific lab exercises as directed by the instructor. Each classroom is fully equipped and stocked with practice materials and standard tools used in installing and repairing the wiring. Any relevant in-house tooling and supplies may be brought into the training session for evaluation and classroom use.

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