Narrative:

I was plting a C310Q from cgf to ric at XA40-XB15Z at 11500 ft MSL. My descent through 3000 ft MSL was uneventful. I was on a modified right base for runway 20 at approximately 2000 ft MSL when tower called downwind lear traffic for runway 16. I started my prelndg checklist which consisted of retract lights out, mixtures rich, approach flaps down, throttle back to 17 inches, gear handle down at 140 KTS, and propellers forward. I increased power to 22 inches and was looking left for the lear traffic. Tower told the lear that I was behind him and that they were cleared to land on runway 16. I now was looking for the lear to my right. Locating the traffic, I went back to the approach. I was short final by now and added full flaps and reduced power to 15 inches. All seemed normal until approximately 5 ft AGL when I expected to feel rubber and asphalt meet. I was at full stall and full idle on the engines upon impact with the runway. I believe that the distraction of the lear traffic kept me occupied longer than usual and I did not perform my normal second or third gumps check since I was at short final when I went back to flying the airplane. In retrospect, I believe that I should have either called the approach off or had the tower vector me clear of the conflicting traffic. I teach and use distrs on students regularly. Yet I fell victim myself to what should have been a simple traffic callout. Having the 2 runways come together like a 'V' puts traffic crossing each other's path at the approach end of the runway where the pilot's concentration should be on the landing and not on traffic. I am not sure yet why the gear did not go down, and I believe that my mind told me that it had the 3 green lights. I also did not get a gear warning horn at any time. I did get the stall horn prior to landing. Owner had aircraft scheduled to go in for gear rigging 4 days from date of incident. Gear breaker was found popped and gear was slightly extended upon touchdown. I will in the future, always call off an approach if I have not been able to perform my usual 2 or 3 gumps checks.

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Original NASA ASRS Text

Title: PLT OF A C310 FAILED TO PUT THE LNDG GEAR DOWN UPON LNDG.

Narrative: I WAS PLTING A C310Q FROM CGF TO RIC AT XA40-XB15Z AT 11500 FT MSL. MY DSCNT THROUGH 3000 FT MSL WAS UNEVENTFUL. I WAS ON A MODIFIED R BASE FOR RWY 20 AT APPROX 2000 FT MSL WHEN TWR CALLED DOWNWIND LEAR TFC FOR RWY 16. I STARTED MY PRELNDG CHKLIST WHICH CONSISTED OF RETRACT LIGHTS OUT, MIXTURES RICH, APCH FLAPS DOWN, THROTTLE BACK TO 17 INCHES, GEAR HANDLE DOWN AT 140 KTS, AND PROPS FORWARD. I INCREASED PWR TO 22 INCHES AND WAS LOOKING L FOR THE LEAR TFC. TWR TOLD THE LEAR THAT I WAS BEHIND HIM AND THAT THEY WERE CLRED TO LAND ON RWY 16. I NOW WAS LOOKING FOR THE LEAR TO MY R. LOCATING THE TFC, I WENT BACK TO THE APCH. I WAS SHORT FINAL BY NOW AND ADDED FULL FLAPS AND REDUCED PWR TO 15 INCHES. ALL SEEMED NORMAL UNTIL APPROX 5 FT AGL WHEN I EXPECTED TO FEEL RUBBER AND ASPHALT MEET. I WAS AT FULL STALL AND FULL IDLE ON THE ENGS UPON IMPACT WITH THE RWY. I BELIEVE THAT THE DISTR OF THE LEAR TFC KEPT ME OCCUPIED LONGER THAN USUAL AND I DID NOT PERFORM MY NORMAL SECOND OR THIRD GUMPS CHK SINCE I WAS AT SHORT FINAL WHEN I WENT BACK TO FLYING THE AIRPLANE. IN RETROSPECT, I BELIEVE THAT I SHOULD HAVE EITHER CALLED THE APCH OFF OR HAD THE TWR VECTOR ME CLR OF THE CONFLICTING TFC. I TEACH AND USE DISTRS ON STUDENTS REGULARLY. YET I FELL VICTIM MYSELF TO WHAT SHOULD HAVE BEEN A SIMPLE TFC CALLOUT. HAVING THE 2 RWYS COME TOGETHER LIKE A 'V' PUTS TFC XING EACH OTHER'S PATH AT THE APCH END OF THE RWY WHERE THE PLT'S CONCENTRATION SHOULD BE ON THE LNDG AND NOT ON TFC. I AM NOT SURE YET WHY THE GEAR DID NOT GO DOWN, AND I BELIEVE THAT MY MIND TOLD ME THAT IT HAD THE 3 GREEN LIGHTS. I ALSO DID NOT GET A GEAR WARNING HORN AT ANY TIME. I DID GET THE STALL HORN PRIOR TO LNDG. OWNER HAD ACFT SCHEDULED TO GO IN FOR GEAR RIGGING 4 DAYS FROM DATE OF INCIDENT. GEAR BREAKER WAS FOUND POPPED AND GEAR WAS SLIGHTLY EXTENDED UPON TOUCHDOWN. I WILL IN THE FUTURE, ALWAYS CALL OFF AN APCH IF I HAVE NOT BEEN ABLE TO PERFORM MY USUAL 2 OR 3 GUMPS CHKS.

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.