THE PILOT STATED THAT SHE EXPERIENCED A PARTIAL POWER LOSS AFTER TAKEOFF WHILE CLIMBING THROUGH 300 FEET AGL. SHE SUBSEQUENTLY ATTEMPTED TO TURN BACK TO THE AIRPORT, HOWEVER, DURING THE TURN THE AIRPLANE DEVELOPED A DESCENT RATE AND THE PILOT CHANGED HER INTENDED FORCED LANDING AREA TO A STREET RATHER THAN IN FRONT OF THE AIRPORT TERMINAL. ON SHORT FINAL, THE AIRPLANE STRUCK A CHAIN LINK FENCE AND CONTROL WAS LOST. THE AIRPLANE CAME TO REST IN FRONT OF THE TERMINAL. THE REASON FOR THE POWER LOSS WAS NOT DETERMINED DURING THE INVESTIGATION.