Narrative:

I was cleared for the approach for runway 35 at phl. When I was approximately on a 2 mi final with full flaps and landing gear extended, there was a commercial jet approaching from the east on a final for runway 27. These 2 runways are perpendicular to each other and intersect at the approach ends of both runways. Since the other aircraft appeared to be landing close to me, I asked the tower if I could execute a 360 degree turn to avoid the anticipated wake turbulence. The controller instructed me to land on runway 26 instead. I was told to head for a right downwind for runway 26. As I was turing to the base leg for runway 26, there was another commercial jet on final for runway 27. I heard the pilot of the commercial jet communicating with the tower that he could not see me. As I turned to final on runway 26, my view was blocked to the oncoming traffic from the east. In view of the midair collision between a navajo and a seminole that occurred over new jersey just a few weeks ago, I was extremely concerned that the pilot approaching runway 27 and I had no visual contact. The preoccupation of avoiding a possible collision of our airplanes converging on 2 runways only a few thousand ft apart -- with no visual contact -- was foremost on my mind. I don't recall ever retracting my gear during my approach to runway 26, but my propellers struck the runway on landing. Smoke started billowing from my left engine. I shut off the fuel valves and escaped from the plane. In the future, it will be my mission to thoroughly review my landing checklist regardless of circumstances.

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Original NASA ASRS Text

Title: GEAR UP LNDG AT PHL AFTER A RWY CHANGE AND MANEUVERING TO AVOID WAKE TURB AND TFC CONFLICT.

Narrative: I WAS CLRED FOR THE APCH FOR RWY 35 AT PHL. WHEN I WAS APPROX ON A 2 MI FINAL WITH FULL FLAPS AND LNDG GEAR EXTENDED, THERE WAS A COMMERCIAL JET APCHING FROM THE E ON A FINAL FOR RWY 27. THESE 2 RWYS ARE PERPENDICULAR TO EACH OTHER AND INTERSECT AT THE APCH ENDS OF BOTH RWYS. SINCE THE OTHER ACFT APPEARED TO BE LNDG CLOSE TO ME, I ASKED THE TWR IF I COULD EXECUTE A 360 DEG TURN TO AVOID THE ANTICIPATED WAKE TURB. THE CTLR INSTRUCTED ME TO LAND ON RWY 26 INSTEAD. I WAS TOLD TO HEAD FOR A R DOWNWIND FOR RWY 26. AS I WAS TURING TO THE BASE LEG FOR RWY 26, THERE WAS ANOTHER COMMERCIAL JET ON FINAL FOR RWY 27. I HEARD THE PLT OF THE COMMERCIAL JET COMMUNICATING WITH THE TWR THAT HE COULD NOT SEE ME. AS I TURNED TO FINAL ON RWY 26, MY VIEW WAS BLOCKED TO THE ONCOMING TFC FROM THE E. IN VIEW OF THE MIDAIR COLLISION BTWN A NAVAJO AND A SEMINOLE THAT OCCURRED OVER NEW JERSEY JUST A FEW WKS AGO, I WAS EXTREMELY CONCERNED THAT THE PLT APCHING RWY 27 AND I HAD NO VISUAL CONTACT. THE PREOCCUPATION OF AVOIDING A POSSIBLE COLLISION OF OUR AIRPLANES CONVERGING ON 2 RWYS ONLY A FEW THOUSAND FT APART -- WITH NO VISUAL CONTACT -- WAS FOREMOST ON MY MIND. I DON'T RECALL EVER RETRACTING MY GEAR DURING MY APCH TO RWY 26, BUT MY PROPS STRUCK THE RWY ON LNDG. SMOKE STARTED BILLOWING FROM MY L ENG. I SHUT OFF THE FUEL VALVES AND ESCAPED FROM THE PLANE. IN THE FUTURE, IT WILL BE MY MISSION TO THOROUGHLY REVIEW MY LNDG CHKLIST REGARDLESS OF CIRCUMSTANCES.

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.