Which component is NOT typically found in the PA-44 electrical system?

In the context of the PA-44 electrical system, the AC inverter is not typically present. The PA-44, also known as the Piper Seminole, primarily operates on a DC electrical system which includes components such as lead-acid batteries and an avionics bus that supplies power to various instruments and avionics equipment.

The presence of batteries is crucial for providing the necessary power for starting the engines and operating the electrical system when the aircraft is on the ground. The clock is generally included as part of the standard instrumentation. An avionics bus is a key component that facilitates the distribution of electrical power to the avionics equipment, ensuring that critical systems remain operational.

In contrast, an AC inverter, which converts DC power to AC for powering certain types of equipment, is not a standard component in the PA-44's electrical architecture. This is significant as it helps define the PA-44’s electrical design, focusing primarily on DC power needs, simplifying the system and reducing potential failure points.