Narrative:

Tmb is located in southwest miami, dade county, fl. It has a control tower, parallel runways 9-27 and runway 13/31. The ILS is on runway 9R. Lindbergh's landing (FA35) is a private grass strip wsw of tmb. It has a 5000 ft runway 9-27. Tmb's class D airspace is nonstandard and has only a 3.5 mi radius. Half of lindbergh's runway is inside the tmb class D airspace. The agreed procedure with tmb tower for operations at lindbergh's is to contact the tower on the ground at lindbergh's or, because some aircraft cannot communication with the tower on the ground, as soon as possible after takeoff. I was operating a YAK52 experimental aircraft from runway 9 at lindbergh's and wanted only to fly direct to tmb and land. I monitored tmb ATIS and tower on the ground, but because of previous experience did not attempt to call tower on the ground. I heard tower communicating with a gulfstream inbound to runway 9R. I did not catch the exact position of the gulfstream, but assumed it would be flying down the ILS from the west as most business jets do. The ILS is north of lindbergh's and parallel to my takeoff path, and I did not anticipate traffic conflicts. Upon departure from lindbergh's, I immediately contacted tmb tower with my position and request. In the air over the departure end of lindbergh's runway 9, I was probably only about 2.5 mi from the approach end of tmb runway 9L, so it's a very close situation under the best of conditions. I was given instructions by tower to fly west and enter a right downwind for runway 13. I initiated a climbing left turn and then heard a radio call asking about 'the aircraft on my left.' I looked to the right and saw a gulfstream pass slightly to my right and underneath me in a descending right turn. The 2 aircraft were very close. The gulfstream had apparently been on a right downwind to tmb runway 9R, rather than straight in ILS I had presumed. It was on a base to final turn when my aircraft appeared on upwind from lindbergh's. The approximately altitude at that point was about 500 ft. I continued to tmb as cleared and landed on runway 13. The gulfstream had already landed on runway 9R, and the pilot questioned the tower about the traffic conflict and close call. Tmb tower explained the situation and that I was in contact with them and following procedure. Nonetheless, it was a very close call. I feel that the proximity of lindbergh's to tmb, the smaller than usual size of the tmb class D airspace, the fact that prevailing winds normally dictate takeoffs to the east and the difficulty in reaching tmb tower by radio on the ground at lindbergh's all contributed to this situation. It was a case of everyone operating in accordance with official procedure, but a very bad situation occurred. My suggestion for improvement in the system is to provide a way to assure 2-WAY radio communications can be had between tmb tower and aircraft on the ground at lindbergh's prior to departure. In my situation, tower could have delayed my takeoff slightly to let the conflicting gulfstream traffic clear the lindbergh's departure course. Callback conversation with reporter revealed the following information: reporter advises that communication from lindbergh is sporadic, apparently the result of distance and antenna location. He restated that it is not uncommon to have to take off first before being able to contact tmb.

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Original NASA ASRS Text

Title: IMMEDIATELY AFTER TKOF FROM LINDBERGH'S LNDG PVT STRIP, RPTR'S EXPERIMENTAL SMA AND GLFII EXPERIENCE NMAC NEAR TMB.

Narrative: TMB IS LOCATED IN SW MIAMI, DADE COUNTY, FL. IT HAS A CTL TWR, PARALLEL RWYS 9-27 AND RWY 13/31. THE ILS IS ON RWY 9R. LINDBERGH'S LNDG (FA35) IS A PVT GRASS STRIP WSW OF TMB. IT HAS A 5000 FT RWY 9-27. TMB'S CLASS D AIRSPACE IS NONSTANDARD AND HAS ONLY A 3.5 MI RADIUS. HALF OF LINDBERGH'S RWY IS INSIDE THE TMB CLASS D AIRSPACE. THE AGREED PROC WITH TMB TWR FOR OPS AT LINDBERGH'S IS TO CONTACT THE TWR ON THE GND AT LINDBERGH'S OR, BECAUSE SOME ACFT CANNOT COM WITH THE TWR ON THE GND, AS SOON AS POSSIBLE AFTER TKOF. I WAS OPERATING A YAK52 EXPERIMENTAL ACFT FROM RWY 9 AT LINDBERGH'S AND WANTED ONLY TO FLY DIRECT TO TMB AND LAND. I MONITORED TMB ATIS AND TWR ON THE GND, BUT BECAUSE OF PREVIOUS EXPERIENCE DID NOT ATTEMPT TO CALL TWR ON THE GND. I HEARD TWR COMMUNICATING WITH A GULFSTREAM INBOUND TO RWY 9R. I DID NOT CATCH THE EXACT POS OF THE GULFSTREAM, BUT ASSUMED IT WOULD BE FLYING DOWN THE ILS FROM THE W AS MOST BUSINESS JETS DO. THE ILS IS N OF LINDBERGH'S AND PARALLEL TO MY TKOF PATH, AND I DID NOT ANTICIPATE TFC CONFLICTS. UPON DEP FROM LINDBERGH'S, I IMMEDIATELY CONTACTED TMB TWR WITH MY POS AND REQUEST. IN THE AIR OVER THE DEP END OF LINDBERGH'S RWY 9, I WAS PROBABLY ONLY ABOUT 2.5 MI FROM THE APCH END OF TMB RWY 9L, SO IT'S A VERY CLOSE SIT UNDER THE BEST OF CONDITIONS. I WAS GIVEN INSTRUCTIONS BY TWR TO FLY W AND ENTER A R DOWNWIND FOR RWY 13. I INITIATED A CLBING L TURN AND THEN HEARD A RADIO CALL ASKING ABOUT 'THE ACFT ON MY L.' I LOOKED TO THE R AND SAW A GULFSTREAM PASS SLIGHTLY TO MY R AND UNDERNEATH ME IN A DSNDING R TURN. THE 2 ACFT WERE VERY CLOSE. THE GULFSTREAM HAD APPARENTLY BEEN ON A R DOWNWIND TO TMB RWY 9R, RATHER THAN STRAIGHT IN ILS I HAD PRESUMED. IT WAS ON A BASE TO FINAL TURN WHEN MY ACFT APPEARED ON UPWIND FROM LINDBERGH'S. THE APPROX ALT AT THAT POINT WAS ABOUT 500 FT. I CONTINUED TO TMB AS CLRED AND LANDED ON RWY 13. THE GULFSTREAM HAD ALREADY LANDED ON RWY 9R, AND THE PLT QUESTIONED THE TWR ABOUT THE TFC CONFLICT AND CLOSE CALL. TMB TWR EXPLAINED THE SIT AND THAT I WAS IN CONTACT WITH THEM AND FOLLOWING PROC. NONETHELESS, IT WAS A VERY CLOSE CALL. I FEEL THAT THE PROX OF LINDBERGH'S TO TMB, THE SMALLER THAN USUAL SIZE OF THE TMB CLASS D AIRSPACE, THE FACT THAT PREVAILING WINDS NORMALLY DICTATE TKOFS TO THE E AND THE DIFFICULTY IN REACHING TMB TWR BY RADIO ON THE GND AT LINDBERGH'S ALL CONTRIBUTED TO THIS SIT. IT WAS A CASE OF EVERYONE OPERATING IN ACCORDANCE WITH OFFICIAL PROC, BUT A VERY BAD SIT OCCURRED. MY SUGGESTION FOR IMPROVEMENT IN THE SYS IS TO PROVIDE A WAY TO ASSURE 2-WAY RADIO COMS CAN BE HAD BTWN TMB TWR AND ACFT ON THE GND AT LINDBERGH'S PRIOR TO DEP. IN MY SIT, TWR COULD HAVE DELAYED MY TKOF SLIGHTLY TO LET THE CONFLICTING GULFSTREAM TFC CLR THE LINDBERGH'S DEP COURSE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR ADVISES THAT COM FROM LINDBERGH IS SPORADIC, APPARENTLY THE RESULT OF DISTANCE AND ANTENNA LOCATION. HE RESTATED THAT IT IS NOT UNCOMMON TO HAVE TO TAKE OFF FIRST BEFORE BEING ABLE TO CONTACT TMB.

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.