Narrative:

I approached ZZZ from the southeast; signed off flight following with whidbey approach; switched to local TA frequency and swung out to the west for some sightseeing with out of town visitors. A few mins later I announced at 1200 ft for a 45 degrees for downwind to runway xx. On announcing joining the right downwind; 2 to 3 other planes announced the same (and one of those stated that he was entering from the east on a crosswind over the numbers). 1 pilot stated that he was climbing out of the pattern because of conflicts. I announced that I didn't have any of the others in sight and was exiting the pattern to the west to re-set up. I flew out to landmark and down the coast for another attempt. After joining the downwind for the second time; I was #2 for landing and well behind #1 who I had in sight. #1 plane announced that he was going to extend his downwind to give a pilot trying to depart runway yy time to take off. The runway yy pilot ultimately decided to taxi to runway xx instead. A piper announced his intentions to join right downwind for runway xx. I extended my downwind and turned right base after the #1 traffic. The piper made no further announcements; so I was watching for him. I made multiple announcements regarding our extended downwind and our right base close to the north shoreline; and then announced a 2 mi final for runway xx and located a piper cherokee on close-in downwind. The piper then started to roll into a right base turn and then announced that he was turning right base. He turned directly towards us. I declared an emergency situation; started evasive action and called for him to divert. He was slow to do that; turned sharply to his left and nearly collided with us as he passed behind us. We went on to land and he landed immediately behind us -- I believe that we were still on the runway as he touched down. I had 2 adult passenger who witnessed the incident. One holds commercial; sel; and instrument certificates. The non-pilot passenger stated to me that he saw the piper touch down on the runway as we were turning to exit to the taxiway. A contributing factor in this event was the decision of a pilot to depart runway yy against traffic and against the calm-wind advisory runway xx. The major contributing factor was the failure of the piper pilot to fly a standard traffic pattern. He omitted the 45 degree to the right downwind leg and entered a close in extended right downwind. He then failed to announce right downwind and failed to listen and understand the fact that 2 aircraft were in the pattern ahead of him and both were extending their downwind legs because of traffic. He then turned base without looking to his left and seeing oncoming traffic. The fact that his downwind leg was so close to the runway; shortened the reaction time for corrective action.

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Original NASA ASRS Text

Title: A C210 PILOT APPROACHING FHR EXPERIENCES NMAC WITH A PIPER CHEROKEE.

Narrative: I APCHED ZZZ FROM THE SE; SIGNED OFF FLT FOLLOWING WITH WHIDBEY APCH; SWITCHED TO LCL TA FREQ AND SWUNG OUT TO THE W FOR SOME SIGHTSEEING WITH OUT OF TOWN VISITORS. A FEW MINS LATER I ANNOUNCED AT 1200 FT FOR A 45 DEGS FOR DOWNWIND TO RWY XX. ON ANNOUNCING JOINING THE R DOWNWIND; 2 TO 3 OTHER PLANES ANNOUNCED THE SAME (AND ONE OF THOSE STATED THAT HE WAS ENTERING FROM THE E ON A XWIND OVER THE NUMBERS). 1 PLT STATED THAT HE WAS CLBING OUT OF THE PATTERN BECAUSE OF CONFLICTS. I ANNOUNCED THAT I DIDN'T HAVE ANY OF THE OTHERS IN SIGHT AND WAS EXITING THE PATTERN TO THE W TO RE-SET UP. I FLEW OUT TO LANDMARK AND DOWN THE COAST FOR ANOTHER ATTEMPT. AFTER JOINING THE DOWNWIND FOR THE SECOND TIME; I WAS #2 FOR LNDG AND WELL BEHIND #1 WHO I HAD IN SIGHT. #1 PLANE ANNOUNCED THAT HE WAS GOING TO EXTEND HIS DOWNWIND TO GIVE A PLT TRYING TO DEPART RWY YY TIME TO TAKE OFF. THE RWY YY PLT ULTIMATELY DECIDED TO TAXI TO RWY XX INSTEAD. A PIPER ANNOUNCED HIS INTENTIONS TO JOIN R DOWNWIND FOR RWY XX. I EXTENDED MY DOWNWIND AND TURNED R BASE AFTER THE #1 TFC. THE PIPER MADE NO FURTHER ANNOUNCEMENTS; SO I WAS WATCHING FOR HIM. I MADE MULTIPLE ANNOUNCEMENTS REGARDING OUR EXTENDED DOWNWIND AND OUR R BASE CLOSE TO THE N SHORELINE; AND THEN ANNOUNCED A 2 MI FINAL FOR RWY XX AND LOCATED A PIPER CHEROKEE ON CLOSE-IN DOWNWIND. THE PIPER THEN STARTED TO ROLL INTO A R BASE TURN AND THEN ANNOUNCED THAT HE WAS TURNING R BASE. HE TURNED DIRECTLY TOWARDS US. I DECLARED AN EMER SITUATION; STARTED EVASIVE ACTION AND CALLED FOR HIM TO DIVERT. HE WAS SLOW TO DO THAT; TURNED SHARPLY TO HIS L AND NEARLY COLLIDED WITH US AS HE PASSED BEHIND US. WE WENT ON TO LAND AND HE LANDED IMMEDIATELY BEHIND US -- I BELIEVE THAT WE WERE STILL ON THE RWY AS HE TOUCHED DOWN. I HAD 2 ADULT PAX WHO WITNESSED THE INCIDENT. ONE HOLDS COMMERCIAL; SEL; AND INST CERTIFICATES. THE NON-PLT PAX STATED TO ME THAT HE SAW THE PIPER TOUCH DOWN ON THE RWY AS WE WERE TURNING TO EXIT TO THE TXWY. A CONTRIBUTING FACTOR IN THIS EVENT WAS THE DECISION OF A PLT TO DEPART RWY YY AGAINST TFC AND AGAINST THE CALM-WIND ADVISORY RWY XX. THE MAJOR CONTRIBUTING FACTOR WAS THE FAILURE OF THE PIPER PLT TO FLY A STANDARD TFC PATTERN. HE OMITTED THE 45 DEG TO THE R DOWNWIND LEG AND ENTERED A CLOSE IN EXTENDED R DOWNWIND. HE THEN FAILED TO ANNOUNCE R DOWNWIND AND FAILED TO LISTEN AND UNDERSTAND THE FACT THAT 2 ACFT WERE IN THE PATTERN AHEAD OF HIM AND BOTH WERE EXTENDING THEIR DOWNWIND LEGS BECAUSE OF TFC. HE THEN TURNED BASE WITHOUT LOOKING TO HIS L AND SEEING ONCOMING TFC. THE FACT THAT HIS DOWNWIND LEG WAS SO CLOSE TO THE RWY; SHORTENED THE REACTION TIME FOR CORRECTIVE ACTION.

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.