PA-44 Seminole/Turbo Seminole
Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 124; Flight Crew Total 9575; Flight Crew Type 1477
Distraction; Fatigue; Human-Machine Interface
Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Gear Up Landing
Air Traffic Control Provided Assistance; Aircraft Aircraft Damaged; Flight Crew Landed in Emergency Condition; Flight Crew Executed Go Around / Missed Approach; Flight Crew Requested ATC Assistance / Clarification; General Maintenance Action
Human Factors
Gear up near-landing.Entered traffic pattern at ZZZ for simulated single-engine full-stop landing after 2.5 hour flight. In the traffic pattern; student announced 'Landing checklist' but both student and Instructor were distracted by Tower calling a traffic alert. We were advised that the traffic to follow needed extra room. After locating traffic; we were then advised by Tower that we were approaching a helicopter 200 ft. lower. Student pilot turned base and despite extending downwind; began immediate descent below approach profile. After correcting the profile; I admonished the student to stay on speed and profile. Student struggled with unusually high speed on base and final. Student was showing signs of exhaustion; so I reminded him to keep up his scan and speed control on final approach. Student elected to execute a single-engine go-around from a low height; so I took control reduced power and continued the approach. While flaring for landing; I heard a scraping noise; realized the gear was not extended; applied full power and climbed away from the runway. I then advised Tower we were going around and needed to return for an immediate emergency landing. No unusual vibrations or engine roughness were detected. On downwind; I executed the landing checklist and made a normal landing.I believe the distraction of two traffic alerts resulted in both the student and me failing to complete the landing checklist. The student struggling with speed and profile further distracted us and we both failed to verify configuration and complete our final approach checklist.Contributing factors: High heat; student checkride stress and a long flight.
PA-44 Check Airman reported executing a last minute go around when hearing 'scraping noise' due to a gear up landing.