1) THE CARBURETOR INLET FUEL LINE BEING IMPROPERLY INSTALLED BY MAINTENANCE PERSONNEL WHICH ALLOWED THE CARBURETOR TO BECOME CONTAMINATED WITH METAL PARTICLES, AND 2) THE CARBURETOR FLOAT VALVE BEING JAMMED BY METAL PARTICLES WHICH ALLOWED EXCESSIVE FUEL TO BE INTRODUCED INTO THE CARBURETOR RESULTING IN FLOODING AND THE TOTAL LOSS OF ENGINE POWER. A FACTOR IN THIS ACCIDENT WAS THE PILOT ENCOUNTERING AN UNFAVORABLE CROSSWIND DURING FINAL APPROACH WHICH LED TO THE AIRPLANE'S WING COLLIDING WITH FENCE POSTS DURING LANDING ROLL.