According to Cessna delivery documents, the airplane was manufactured and delivered to the first owner with complete left-side flight instrumentation.31 The vacuum-driven instruments installed on the left side of the instrument panel consisted of a horizontal situation indicator that incorporated a heading indicator (S/N W7153B) and an attitude indicator (S/N A4118K). The pitot-static instruments installed on the left side of the instrument panel included an encoding altimeter, an airspeed indicator, and a vertical speed indicator. The only electrically driven navigation instrument on the left panel was the turn and bank indicator.