Which method is commonly used for troubleshooting electrical issues in aircraft systems?

Using a multimeter to measure voltage and continuity is a fundamental method for troubleshooting electrical issues in aircraft systems because it allows technicians to assess the functionality of electrical components accurately. A multimeter enables the measurement of voltage levels, which helps to determine whether power is reaching specific parts of a system. Additionally, checking continuity confirms whether electrical paths are intact or if there are breaks in the circuit. This method is systematic, relying on quantifiable data, which is essential in identifying issues and ensuring the safe operation of aircraft systems.

While visual inspection can provide initial insights into obvious issues, it cannot effectively diagnose problems that are not visible to the eye. Relying solely on pilot reports can lead to incomplete diagnostic understanding since pilots may not always have the technical background to describe electrical issues accurately. Testing tools with water is not a standard method for troubleshooting electrical systems and could introduce significant safety risks, especially in an aircraft context, where moisture and electronics do not mix well. Therefore, the use of a multimeter stands out as the most reliable technique for systematic troubleshooting of electrical issues in aviation.