Incident Overview
Aircraft maintenance personnel had replaced the nose landing gear assembly and conducted retraction tests before releasing the aircraft for flight. After takeoff, the landing gear was retracted, and the flight proceeded without incident until the aircraft entered the traffic pattern for landing, at which point the nose gear failed to extend.
Pilot Actions and Landing
The instructor pilot elected to land with only the main landing gears extended. During the final approach, the left engine and propeller were secured. The aircraft touched down on the main landing gears. As the aircraft slowed during the landing roll, the nose pitched down, and the right propeller impacted the ground.
Subsequent Damage
The propeller separated from the aircraft upon ground impact and struck the right main landing gear. The right landing gear was severed from the aircraft, and the aircraft slid to a stop.