Narrative:

X was executing the lake parker arrival (see attached chart) to runway 27R. Everything proceeded normally despite the fairly heavy traffic. As I did my downwind (point a on chart), I was following 2 other aircraft. A dc-3 was proceeding wide of my aircraft for a landing on runway 27L. He was at 1500 ft descending. I was at 1000 ft descending, turning base. A hawker jet was on a straight in to runway 27L. The plane I was following was a cessna 182. The first airplane for runway 27R was a home built biplane. He was 'cleared to land.' all of these aircraft were executing the lake parker arrival and/or additional instructions from the tower. As I turned base, the cessna 182 was 'cleared to land' and about this time a 'popup' appeared. A low wing piper (which the tower later called a 'saratoga') came into view from my 10 O'clock low (from the northeast, see point B on chart). It was obvious to me that he had not executed a 'lake parker' arrival and he cut in between the cessna 182 and my plane. The tower controller saw him before I did and made several quick references to the 'low wing piper.' I was in a low wing experimental and initially thought he might be referring to me. Then I saw the piper. The controller told the piper to follow the cessna which seemed appropriate since he now was between us. I followed the piper. I still had the dc-3 out to my left and the hawker on an approach to runway 27L. No turns seemed reasonable. I slowed my plane as much as possible to space myself behind the piper. The piper landed on runway 27R and kept the runway. By now I was commencing corrective action. The piper stayed short on runway 27R and the controller told him to hold up, as it 'appeared' another plane would pass over him and land long. I went right of the piper at about 200 ft AGL. After I passed over and beyond the piper, I set up and executed a normal landing about mid-field. The tower did not give me additional instructions. The controller was talking to the piper.

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Original NASA ASRS Text

Title: X LANDED ON OCCUPIED RWY.

Narrative: X WAS EXECUTING THE LAKE PARKER ARR (SEE ATTACHED CHART) TO RWY 27R. EVERYTHING PROCEEDED NORMALLY DESPITE THE FAIRLY HVY TFC. AS I DID MY DOWNWIND (POINT A ON CHART), I WAS FOLLOWING 2 OTHER ACFT. A DC-3 WAS PROCEEDING WIDE OF MY ACFT FOR A LNDG ON RWY 27L. HE WAS AT 1500 FT DSNDING. I WAS AT 1000 FT DSNDING, TURNING BASE. A HAWKER JET WAS ON A STRAIGHT IN TO RWY 27L. THE PLANE I WAS FOLLOWING WAS A CESSNA 182. THE FIRST AIRPLANE FOR RWY 27R WAS A HOME BUILT BIPLANE. HE WAS 'CLRED TO LAND.' ALL OF THESE ACFT WERE EXECUTING THE LAKE PARKER ARR AND/OR ADDITIONAL INSTRUCTIONS FROM THE TWR. AS I TURNED BASE, THE CESSNA 182 WAS 'CLRED TO LAND' AND ABOUT THIS TIME A 'POPUP' APPEARED. A LOW WING PIPER (WHICH THE TWR LATER CALLED A 'SARATOGA') CAME INTO VIEW FROM MY 10 O'CLOCK LOW (FROM THE NE, SEE POINT B ON CHART). IT WAS OBVIOUS TO ME THAT HE HAD NOT EXECUTED A 'LAKE PARKER' ARR AND HE CUT IN BTWN THE CESSNA 182 AND MY PLANE. THE TWR CTLR SAW HIM BEFORE I DID AND MADE SEVERAL QUICK REFS TO THE 'LOW WING PIPER.' I WAS IN A LOW WING EXPERIMENTAL AND INITIALLY THOUGHT HE MIGHT BE REFERRING TO ME. THEN I SAW THE PIPER. THE CTLR TOLD THE PIPER TO FOLLOW THE CESSNA WHICH SEEMED APPROPRIATE SINCE HE NOW WAS BTWN US. I FOLLOWED THE PIPER. I STILL HAD THE DC-3 OUT TO MY L AND THE HAWKER ON AN APCH TO RWY 27L. NO TURNS SEEMED REASONABLE. I SLOWED MY PLANE AS MUCH AS POSSIBLE TO SPACE MYSELF BEHIND THE PIPER. THE PIPER LANDED ON RWY 27R AND KEPT THE RWY. BY NOW I WAS COMMENCING CORRECTIVE ACTION. THE PIPER STAYED SHORT ON RWY 27R AND THE CTLR TOLD HIM TO HOLD UP, AS IT 'APPEARED' ANOTHER PLANE WOULD PASS OVER HIM AND LAND LONG. I WENT R OF THE PIPER AT ABOUT 200 FT AGL. AFTER I PASSED OVER AND BEYOND THE PIPER, I SET UP AND EXECUTED A NORMAL LNDG ABOUT MID-FIELD. THE TWR DID NOT GIVE ME ADDITIONAL INSTRUCTIONS. THE CTLR WAS TALKING TO THE PIPER.

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.