2-5. Preflight Checkout
If during preflight checkout the equipment fails to work, complete step, then refer to higher
category of maintenance.
All switches and controls are located on the control panel (fig. 2-3).
a. Set MODE switch (1) to OFF.
Ensure aircraft ALT circuit breakers are on.
b. Press to test the following lamps. When released the lamps go out.
RU FAULT (3)
EU FAULT (4)
Figure 2-3. ALT Control Panel.