What should be checked for loose connections during troubleshooting?

During troubleshooting, checking electrical bonds and wiring for loose connections is crucial because these are the pathways through which electrical current flows, and any looseness can lead to intermittent connectivity or complete failure of the electrical circuit. Loose connections can result in a variety of issues, including erratic behavior of electronic components, shorts, and electrical arcing which can cause further damage to the aircraft's electronic systems.

Assessing the integrity of the electrical bonds ensures that all connections are secure, which is vital for the reliability and safety of the aircraft's systems. Wires that are not properly connected can create resistance in the circuit, leading to overheating or malfunctioning of components, which is why this step is critical during maintenance and troubleshooting processes.

While it’s important to also check circuit breakers and indicator lights for functionality, these components do not directly address potential loose physical connections that could be impacting the overall system. Component weights are typically irrelevant in the context of electrical troubleshooting. Thus, focusing on the integrity of electrical bonds and wiring directly targets the most common cause of electrical issues in aircraft systems.