Narrative:

After an uneventful 1 hour pleasure flight I was approaching north perry's airspace from the west. I called the tower controller while approximately 10 mi west of the airport on the 270 degree radial. I was issued a straight-in approach to runway 9R, with instructions to call when on a 2 mi final. I was at 1300 ft MSL (which is also AGL at this location), descending gradually to 1200 ft. Visibility was good. Few clouds were near. At around 6 mi out, the tower controller advised me of traffic at my 2 O'clock position, at my altitude about 1 mi away. Against the background of the city, I scanned for the plane, which apparently was not in contact with north perry controllers, being outside of their airspace. It took about 2 seconds to spot the plane, another 2 seconds to realize it was on a collision course with me, and then I banked and turned to the left at the same time the other plane banked and turned to his left, thus avoiding a collision and passing by each other at an extremely close distance -- about half of a football field. It was a C210, but it happened too quickly to get the registration number. I thanked the tower controller for calling out the traffic. Opa locka airport, which is just south of north perry airport, has aircraft taking off and turning northwest just outside of north perry's airspace, so they are not on the same frequency as aircraft approaching north perry from the west. The miami-ft lauderdale area is highly developed in urban sprawl, which makes aircraft tend to blend in with the landscape, especially at low altitude during approachs and departures. If the north perry controller hadn't seen this other aircraft on his radar screen, I might not have seen it in time. Also, I made the judgement to make my evasive turn to the left after assessing the situation for a split second and realizing that due to the convergence angle, a right turn would have put me into the path of the other plane due to the closeness. The other pilot must have sensed the same thing at the same time, because we both made left turns at the same instant. It all happened so quickly. It was over in a couple of seconds.

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Original NASA ASRS Text

Title: NMAC BTWN A C152 ON A LONG STRAIGHT IN APCH AND A C210 XING FLT PATHS IN CRUISE OUTSIDE OF CLASS D AIRSPACE.

Narrative: AFTER AN UNEVENTFUL 1 HR PLEASURE FLT I WAS APCHING NORTH PERRY'S AIRSPACE FROM THE W. I CALLED THE TWR CTLR WHILE APPROX 10 MI W OF THE ARPT ON THE 270 DEG RADIAL. I WAS ISSUED A STRAIGHT-IN APCH TO RWY 9R, WITH INSTRUCTIONS TO CALL WHEN ON A 2 MI FINAL. I WAS AT 1300 FT MSL (WHICH IS ALSO AGL AT THIS LOCATION), DSNDING GRADUALLY TO 1200 FT. VISIBILITY WAS GOOD. FEW CLOUDS WERE NEAR. AT AROUND 6 MI OUT, THE TWR CTLR ADVISED ME OF TFC AT MY 2 O'CLOCK POS, AT MY ALT ABOUT 1 MI AWAY. AGAINST THE BACKGROUND OF THE CITY, I SCANNED FOR THE PLANE, WHICH APPARENTLY WAS NOT IN CONTACT WITH NORTH PERRY CTLRS, BEING OUTSIDE OF THEIR AIRSPACE. IT TOOK ABOUT 2 SECONDS TO SPOT THE PLANE, ANOTHER 2 SECONDS TO REALIZE IT WAS ON A COLLISION COURSE WITH ME, AND THEN I BANKED AND TURNED TO THE L AT THE SAME TIME THE OTHER PLANE BANKED AND TURNED TO HIS L, THUS AVOIDING A COLLISION AND PASSING BY EACH OTHER AT AN EXTREMELY CLOSE DISTANCE -- ABOUT HALF OF A FOOTBALL FIELD. IT WAS A C210, BUT IT HAPPENED TOO QUICKLY TO GET THE REGISTRATION NUMBER. I THANKED THE TWR CTLR FOR CALLING OUT THE TFC. OPA LOCKA ARPT, WHICH IS JUST S OF NORTH PERRY ARPT, HAS ACFT TAKING OFF AND TURNING NW JUST OUTSIDE OF NORTH PERRY'S AIRSPACE, SO THEY ARE NOT ON THE SAME FREQ AS ACFT APCHING NORTH PERRY FROM THE W. THE MIAMI-FT LAUDERDALE AREA IS HIGHLY DEVELOPED IN URBAN SPRAWL, WHICH MAKES ACFT TEND TO BLEND IN WITH THE LANDSCAPE, ESPECIALLY AT LOW ALT DURING APCHS AND DEPS. IF THE NORTH PERRY CTLR HADN'T SEEN THIS OTHER ACFT ON HIS RADAR SCREEN, I MIGHT NOT HAVE SEEN IT IN TIME. ALSO, I MADE THE JUDGEMENT TO MAKE MY EVASIVE TURN TO THE L AFTER ASSESSING THE SIT FOR A SPLIT SECOND AND REALIZING THAT DUE TO THE CONVERGENCE ANGLE, A R TURN WOULD HAVE PUT ME INTO THE PATH OF THE OTHER PLANE DUE TO THE CLOSENESS. THE OTHER PLT MUST HAVE SENSED THE SAME THING AT THE SAME TIME, BECAUSE WE BOTH MADE L TURNS AT THE SAME INSTANT. IT ALL HAPPENED SO QUICKLY. IT WAS OVER IN A COUPLE OF SECONDS.

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.