A PRIVATELY OWNED SMT HAD A WHEELS UP LNDG WHEN THE OWNER PLT BECAME DISTR FROM HIS NORMAL LNDG ROUTINE.

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PRIOR TO LEAVING KPNE; A NOTAM RECEIVED FROM UNIVERSAL WX INDICATED RWY 12 AND 30 WAS CLOSED -- NO REASON GIVEN. WHILE OVER LAKE MICHIGAN; BUT IN THE CHICAGO AREA; I WAS ADVISED BY CHICAGO APCH CTL THAT RWY 16 AND 34 WAS CLOSED. THIS IS THE LONGEST RWY AT PWK AND THE ONE I HAD INTENDED TO USE. I WAS CLRED FOR VECTORS FOR STRAIGHT IN APCH TO RWY 24. WHILE STILL OVER THE LAKE; I DID A GUMP CHK BUT ELECTED AT THAT TIME NOT TO LOWER THE GEAR BECAUSE I WAS TOO FAR FROM THE ARPT -- APPROX 25-30 NM. THERE FOLLOWED A CONVERSATION WITH THE TWR REGARDING A RWY FOR THE LNDG. I FELT RWY 24 WAS TOO SHORT; SINCE THE SMT IS NOT A GOOD SHORT FIELD AIRPLANE. I DECIDED ON RWY 30R. I NEGLECTED TO DO THE PLANNED SECOND GUMP CHK. OTHERWISE; I READIED THE AIRPLANE FOR LNDG. I THEN FOCUSED ON THE NEED TO APPLY SHORT FIELD LNDG TECHNIQUES. THE NEXT THING I KNEW; WHILE IN FINAL APCH; WAS CHOPPING THE PWR; THEN A CALL FROM THE TWR TO 'GAR' AND SIMULTANEOUSLY A TOUCH DOWN. THE LNDG GEAR WAS NOT LOWERED. WE STAYED ON THE RWY. THERE WERE NO INJURIES TO EITHER THE PLT OR THE R SEAT PAX (ONLY 2 PERSONS ONBOARD). THERE WAS NO POST CRASH FIRE OR PROBLEMS OF ANY KIND. POST INCIDENT INVESTIGATION REVEALED THAT BOTH PROPS WERE SERIOUSLY DAMAGED; ALL THE UNDER THE BELLY ANTENNAS WERE WIPED OFF; AND THERE WAS SOME MINOR SCRAPING AND PAINT DAMAGE TO THE UNDERSIDE OF THE BELLY AND THE KEEL. NO DAMAGE TO THE WINGS; EMPENNAGE OR THE REST OF THE FUSELAGE WHICH COULD BE DETERMINED BY VISUAL INSPECTION. THE CONDITION OF THE ENGS IS NOT KNOWN. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO. THE LNDG GEAR WARNING HORN WORKED AS ADVERTISED WHEN THE ACFT WAS JACKED UP AFTER THE INCIDENT. THE FAA HAS REQUIRED HIM TO HAVE A CHKRIDE AFTER THE ACFT IS BACK IN SVC. IN THE MEANTIME; HE HAS ALREADY BEEN TO FLT SAFETY FOUNDATION AND GOTTEN SOME SIMULATOR TRAINING. THE NTSB CLASSIFIED THE WHOLE AFFAIR AS AN 'INCIDENT.' THE RPTR DOES NOT KNOW WHY HE DID NOT HEAR THE GEAR WARNING HORN; OTHER THAN THE POSSIBILITY OF THE NOISE CANCELLING HEADSET. HIS WIFE (THE ONLY PAX) DID NOT KNOW IF SHE HEARD THE HORN AS SHE HAD NEVER HEARD IT BEFORE.