C172S Electrical System. Engine: Shutdown. EPU: Disconnected. Master. Breakers. Switches. Menu. Created by Everette Johnson • Neil Nowatzki Aerospace Network. Electrical system data is displayed at the bottom of the Engine Indication System (EIS) bar along the left side of the MFD. Main bus voltage is measured at the WARN circuit breaker.. The primary function of an aircraft electrical system is to generate, regulate, and distribute electrical power throughout the aircraft. There are several different power sources on aircraft to power the aircraft electrical systems. These power sources include: engine-driven alternating current (AC) generators, auxiliary power units (APUs), and.
C172S Quiz Questions. Students must have 100% prior to check ride References: C172S POH, C172S Training guide The C172S engine is made by How many volts is the C172S electrical A. Lycoming system? B. Continental A. 12 C. Diamond Aircraft corp. B.. C172S Electrical System. Having had to come to grips with, diagnose, and repair alternator faults in both a 35yo Toyota Landcruiser (utterly conventional for its time, mechanical external regulator, six power diodes, no exciter diodes, very similar to the 172) and a 60yo Vespa (forget everything you thought you knew, this is regulated AC, no.