Baby grand,
you were correct! I inadvertently looked at the weight in KG'S.
The Mars Climate Orbiter was intended to enter orbit at an altitude of 140.5?50 km (460,000-500,000 ft.) above Mars. However, a navigation error caused the spacecraft to reach as low as 57 km (190,000 ft.). The spacecraft was destroyed by atmospheric stresses and friction at this low altitude. The navigation error arose because the contractors for craft's thrusters did not use SI units to express their performance[1].