Narrative:

I was giving instruction in an aircraft to a current instrument instructor to complete his commercial multi-instrument. Entering right base for 25, I pulled the gear circuit breaker to simulate gear failure. The student recognized the problem and extended the gear manually. 3 green were had. The left engine was simulated out at this time also. I replaced the extension (emergency) handle and the circuit breaker. The student at my request performed a single engine go around. The gear and flaps were retracted via the normal procedure and the aircraft secured. Making right traffic, the student was to land with the left engine simulated out. Altitude was in the pattern as about 700 ft. Altitude was not to spare so the student did not attempt to put gear down until final. At 200 ft I thought the student put the gear handle down. At this point, I became distraction with the single engine landing and forgot (I guess) the 3 green indicator. We touched down at idle on both engines. Mixture, propellers, throttles and the master were secured. The student and myself cleared the aircraft immediately. When the aircraft was recovered, the handle for the gear was down and the gear breaker was intact. The distraction of the single engine situation and the low altitude caused me to divert my attention from the gear. A checklist was used (placard) but not adhered to in the closing seconds as we approached landing. Division of attention and checklists coupled with situational awareness could have prevented this incident.

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Original NASA ASRS Text

Title: SMA TRAINING FOR ADVANCED RATING. GIVES A GEAR FAILURE AND ENG OUT SIMULATION, THEN GAR. NEXT APCH SINGLE ENG, LAND GEAR UP.

Narrative: I WAS GIVING INSTRUCTION IN AN ACFT TO A CURRENT INST INSTRUCTOR TO COMPLETE HIS COMMERCIAL MULTI-INST. ENTERING R BASE FOR 25, I PULLED THE GEAR CIRCUIT BREAKER TO SIMULATE GEAR FAILURE. THE STUDENT RECOGNIZED THE PROBLEM AND EXTENDED THE GEAR MANUALLY. 3 GREEN WERE HAD. THE L ENG WAS SIMULATED OUT AT THIS TIME ALSO. I REPLACED THE EXTENSION (EMER) HANDLE AND THE CIRCUIT BREAKER. THE STUDENT AT MY REQUEST PERFORMED A SINGLE ENG GAR. THE GEAR AND FLAPS WERE RETRACTED VIA THE NORMAL PROC AND THE ACFT SECURED. MAKING R TFC, THE STUDENT WAS TO LAND WITH THE L ENG SIMULATED OUT. ALT WAS IN THE PATTERN AS ABOUT 700 FT. ALT WAS NOT TO SPARE SO THE STUDENT DID NOT ATTEMPT TO PUT GEAR DOWN UNTIL FINAL. AT 200 FT I THOUGHT THE STUDENT PUT THE GEAR HANDLE DOWN. AT THIS POINT, I BECAME DISTR WITH THE SINGLE ENG LNDG AND FORGOT (I GUESS) THE 3 GREEN INDICATOR. WE TOUCHED DOWN AT IDLE ON BOTH ENGS. MIXTURE, PROPS, THROTTLES AND THE MASTER WERE SECURED. THE STUDENT AND MYSELF CLRED THE ACFT IMMEDIATELY. WHEN THE ACFT WAS RECOVERED, THE HANDLE FOR THE GEAR WAS DOWN AND THE GEAR BREAKER WAS INTACT. THE DISTR OF THE SINGLE ENG SITUATION AND THE LOW ALT CAUSED ME TO DIVERT MY ATTN FROM THE GEAR. A CHKLIST WAS USED (PLACARD) BUT NOT ADHERED TO IN THE CLOSING SECONDS AS WE APCHED LNDG. DIVISION OF ATTN AND CHKLISTS COUPLED WITH SITUATIONAL AWARENESS COULD HAVE PREVENTED THIS INCIDENT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.