The Bendix Horizontal Situation Indicator IN-881A, with part number 4000873-8102, is designed for avionics use in aircraft. It is compatible with Avionics systems and operates on either 14 or 28 volts. This indicator is manufactured in the United States by Bendix and does not come with a warranty. It is commonly used in aviation for displaying important flight information and navigation data to the pilot. Working , as removed.