Narrative:

On aug/xa/06 myself and another CFI both with commercial MEL with instrument privileges set out to build some multi-engine time. We took off from stc around xa:30 local time with me at the controls to do some practice instrument approachs. I flew the VOR runway 13 approach to minimums; went missed and proceeded to shoot the ILS runway 31 approach to minimums went missed and proceeded to the southeast to do the VOR-a approach at mgg took that to minimums did a circle-to-land runway 10 landed taxied back; took off and flew left traffic for runway 10; landed and possibly did one more of the same. After that the other CFI on board took the controls to do some takeoff and lndgs. The other CFI in the seat proceeded to do a normal takeoff and fly a normal pattern. Everything seemed to be fine. I remember the pilot pushing propellers full forward which comes after gear extension in our training. I didn't think to doublechk his work. Final approach was normal. Upon crossing the end of the runway 10-15 ft AGL; we heard 'gear; gear' over the radio. At the time of the second 'gear;' the back end of the aircraft hit the ground; and about 1 second later the rest of the aircraft made contact with the ground. We proceeded to skid down the runway coming to a stop about 2/3 down the runway. Upon stopping we opened the doors. Before exiting; I made sure all 6 controls on the throttle column were pulled back; fuel valves were shut off; boost pumps were off; and masters off. Neither of us sustained any injuries; WX was not a factor. Minimal aircraft damage. Chain of events: I believe that the main reason the incident occurred was because a physical checklist was not used; instead a memory checklist was used. We discovered the issue on impact. Corrective issues would be to always double and triple check actions taken and to use a physical checklist.

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Original NASA ASRS Text

Title: A BE76 LANDED WITH LNDG GEAR UP BECAUSE OF FAILURE TO USE PRINTED CHKLIST.

Narrative: ON AUG/XA/06 MYSELF AND ANOTHER CFI BOTH WITH COMMERCIAL MEL WITH INST PRIVILEGES SET OUT TO BUILD SOME MULTI-ENG TIME. WE TOOK OFF FROM STC AROUND XA:30 LCL TIME WITH ME AT THE CTLS TO DO SOME PRACTICE INST APCHS. I FLEW THE VOR RWY 13 APCH TO MINIMUMS; WENT MISSED AND PROCEEDED TO SHOOT THE ILS RWY 31 APCH TO MINIMUMS WENT MISSED AND PROCEEDED TO THE SE TO DO THE VOR-A APCH AT MGG TOOK THAT TO MINIMUMS DID A CIRCLE-TO-LAND RWY 10 LANDED TAXIED BACK; TOOK OFF AND FLEW L TFC FOR RWY 10; LANDED AND POSSIBLY DID ONE MORE OF THE SAME. AFTER THAT THE OTHER CFI ON BOARD TOOK THE CTLS TO DO SOME TKOF AND LNDGS. THE OTHER CFI IN THE SEAT PROCEEDED TO DO A NORMAL TKOF AND FLY A NORMAL PATTERN. EVERYTHING SEEMED TO BE FINE. I REMEMBER THE PLT PUSHING PROPS FULL FORWARD WHICH COMES AFTER GEAR EXTENSION IN OUR TRAINING. I DIDN'T THINK TO DOUBLECHK HIS WORK. FINAL APCH WAS NORMAL. UPON XING THE END OF THE RWY 10-15 FT AGL; WE HEARD 'GEAR; GEAR' OVER THE RADIO. AT THE TIME OF THE SECOND 'GEAR;' THE BACK END OF THE ACFT HIT THE GND; AND ABOUT 1 SECOND LATER THE REST OF THE ACFT MADE CONTACT WITH THE GND. WE PROCEEDED TO SKID DOWN THE RWY COMING TO A STOP ABOUT 2/3 DOWN THE RWY. UPON STOPPING WE OPENED THE DOORS. BEFORE EXITING; I MADE SURE ALL 6 CTLS ON THE THROTTLE COLUMN WERE PULLED BACK; FUEL VALVES WERE SHUT OFF; BOOST PUMPS WERE OFF; AND MASTERS OFF. NEITHER OF US SUSTAINED ANY INJURIES; WX WAS NOT A FACTOR. MINIMAL ACFT DAMAGE. CHAIN OF EVENTS: I BELIEVE THAT THE MAIN REASON THE INCIDENT OCCURRED WAS BECAUSE A PHYSICAL CHKLIST WAS NOT USED; INSTEAD A MEMORY CHKLIST WAS USED. WE DISCOVERED THE ISSUE ON IMPACT. CORRECTIVE ISSUES WOULD BE TO ALWAYS DOUBLE AND TRIPLE CHK ACTIONS TAKEN AND TO USE A PHYSICAL CHKLIST.

Data retrieved from NASA's ASRS site as of January 2009 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.