Prior to shutdown, what should be done with RMU, EADI, and EHSI?

• A. Return RMU, EADI, EHSI to standard (attachment 1), and reset the G meter unless Over G suspected
• B. Power down all instruments
• C. Leave them as they are
• D. Disconnect power and cover

Answer: (A)

Before shutdown, restore the RMU, EADI, and EHSI to their standard configuration so the cockpit starts from a known, correct baseline. Returning these displays to the standard setup (as defined in the referenced attachment) ensures radios and navigation displays are aligned and ready for the next session. At the same time, reset the G-meter to zero to clear the previous flight’s peak values, providing a clean baseline for future flight checks. If there has been any Over-G suspected during the flight, do not reset the G-meter so that the peak value remains available for post-flight analysis. Other options don’t provide the benefit of a known, consistent starting state or fail to preserve important data needed for safety and accuracy.