Free CAET Exam Prep

14 CFR Part 43 maintenance records and return to service, persons authorized under §§ 43.3 and 43.7, Part 65 repairman privileges, Airworthiness Directives (Part 39), STCs and Form 337 major alterations, TSO/PMA parts eligibility, ICAs, and systematic troubleshooting using approved or acceptable data

Ohm's law and power, series/parallel DC circuits, AC theory and impedance, transformers, diodes and transistors, digital logic and the resistor color code, plus aircraft electrical systems: batteries, alternators and regulators, bus bars, and circuit protection

VHF comm (118.000-136.975 MHz, 25 and 8.33 kHz spacing), VOR/ILS and marker beacons, GPS/WAAS, DME, transponders (1030/1090 MHz), Mode S, ADS-B (1090ES and 978 UAT), TCAS, 406 MHz ELTs, and weather radar

Pitot-static instruments, the 24-month § 91.411/§ 91.413 tests to Part 43 Appendices E and F, the 29.92 in Hg pressure-altitude datum, gyroscopic instruments, AHRS and magnetometers, air data computers, EFIS/PFD, and blocked-port fault effects

ARINC 429 (32-bit word, label, SDI, SSM, odd parity, 12.5/100 kbps), CAN bus with 120-ohm termination, Ethernet-based buses such as Garmin HSDB and ARINC 664/AFDX, and MIL-STD-1553 command/response architecture

AC 43.13-1B and 43.13-2B practices: wire selection and ratings, stripping within Table 11-13 strand-damage limits, crimping and splicing, routing above fluid lines, clamping and bend radii, bonding and shielding, coax, and antenna installation

Multimeter voltage, current, and resistance techniques, megohmmeter insulation tests, calibrated crimp and torque tools, oscilloscopes and TDRs, pitot-static and transponder ramp test sets, and calibration control

Battery and electrical safety, lockout/tagout, stored-energy hazards, RF radiation safety around weather radar (AC 20-68B), ESD protection, FOD control and tool accountability, soldering hygiene, and maintenance human factors