Students will learn about the annunciator indicating systems, pressure indicating instruments, position indication sensors, the pitot-static system, built in test equipment, and head-up displays. They will identify and mitigate risks associated with actions in response to a reported intermittent warning or caution annunciator light illumination, and performing maintenance on equipment identified as electrostatic-sensitive. Students will perform a pitot-static test, remove and install instruments, inspect a magnetic compass, adjust gyro/instrument air pressure/vacuum, and explain the adjustment procedures for a stall warning system.