To find the service ceiling as a function of Weight, Altitude, and Temperature, go to Part 1, Section IV (Performance Information) of the Flight Manual and locate the chart entitled “Forward Climb Performance, Dual Engine, Max Continuous Power, Best Rate of Climb Speed”. Enter the chart at a rate of climb of 100 fpm (defined as the service ceiling), move up vertically to the desired gross weight, then left horizontally to the desired temperature, then down vertically to determine the associated pressure altitude. The 15,000 ft density altitude limit is shown on the chart. Depending on the weight, altitude, and temperature, the service ceiling may occur below, at, or above 15,000 ft density altitude, but the 15,000 ft density altitude limit must be respected.