Narrative:

On sep/xx/96, at approximately XA25L, I took off from runway 3 at 4b9, an uncontrolled airport. After an initial climb of about 600 ft, I turned 90 degrees left and then turned further left to an approximately heading of 250 degrees. I was climbing through an altitude of 1400-1500 ft MSL, about 1.5 mi west of simsbury airport, perpendicular to midfield on a heading approximately 40 degrees away from simsbury's traffic pattern downwind heading (210 degrees). At that point, while scanning the horizon, I saw an airliner at my 3 O'clock position, descending on a direct collision course with my aircraft. I immediately initiated forward stick and dove my aircraft. The airliner passed approximately 100-150 ft over me. To my knowledge, no one witnessed the incident. There were, however, witnesses who observed the airliner after it passed me, passing directly over simsbury airport at, what appeared to be, pattern or near pattern altitude (1200 ft MSL -- 1000 ft AGL) on its way to a landing at bdl. Simsbury airport is just west of bdl which has class C airspace. There is a notch in the western quadrant of bdl's class C airspace to allow for simsbury's traffic to transition in and out of the airport with the bottom of the class C area being 2100 ft MSL. Both airports have been in operation for yrs and I have been flying out of simsbury for over 20 yrs. This was a holiday weekend and the WX was super VFR. There were many private aircraft in and out of simsbury all day. I do not understand why bradley's ATC would allow an airliner to descend below the class C airspace into a small airport's traffic area on a VFR day during a holiday weekend or at any time.

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Original NASA ASRS Text

Title: NMAC BTWN AN SMA SEL CLBING OUT OF AN UNCTLED ARPT AND A DC9 APCHING TO LAND AT A NEARBY LARGE ARPT. THE SMA 'DOVE' TO GET OUT OF THE FLT PATH OF THE DC9.

Narrative: ON SEP/XX/96, AT APPROX XA25L, I TOOK OFF FROM RWY 3 AT 4B9, AN UNCTLED ARPT. AFTER AN INITIAL CLB OF ABOUT 600 FT, I TURNED 90 DEGS L AND THEN TURNED FURTHER L TO AN APPROX HDG OF 250 DEGS. I WAS CLBING THROUGH AN ALT OF 1400-1500 FT MSL, ABOUT 1.5 MI W OF SIMSBURY ARPT, PERPENDICULAR TO MIDFIELD ON A HDG APPROX 40 DEGS AWAY FROM SIMSBURY'S TFC PATTERN DOWNWIND HDG (210 DEGS). AT THAT POINT, WHILE SCANNING THE HORIZON, I SAW AN AIRLINER AT MY 3 O'CLOCK POS, DSNDING ON A DIRECT COLLISION COURSE WITH MY ACFT. I IMMEDIATELY INITIATED FORWARD STICK AND DOVE MY ACFT. THE AIRLINER PASSED APPROX 100-150 FT OVER ME. TO MY KNOWLEDGE, NO ONE WITNESSED THE INCIDENT. THERE WERE, HOWEVER, WITNESSES WHO OBSERVED THE AIRLINER AFTER IT PASSED ME, PASSING DIRECTLY OVER SIMSBURY ARPT AT, WHAT APPEARED TO BE, PATTERN OR NEAR PATTERN ALT (1200 FT MSL -- 1000 FT AGL) ON ITS WAY TO A LNDG AT BDL. SIMSBURY ARPT IS JUST W OF BDL WHICH HAS CLASS C AIRSPACE. THERE IS A NOTCH IN THE WESTERN QUADRANT OF BDL'S CLASS C AIRSPACE TO ALLOW FOR SIMSBURY'S TFC TO TRANSITION IN AND OUT OF THE ARPT WITH THE BOTTOM OF THE CLASS C AREA BEING 2100 FT MSL. BOTH ARPTS HAVE BEEN IN OP FOR YRS AND I HAVE BEEN FLYING OUT OF SIMSBURY FOR OVER 20 YRS. THIS WAS A HOLIDAY WEEKEND AND THE WX WAS SUPER VFR. THERE WERE MANY PVT ACFT IN AND OUT OF SIMSBURY ALL DAY. I DO NOT UNDERSTAND WHY BRADLEY'S ATC WOULD ALLOW AN AIRLINER TO DSND BELOW THE CLASS C AIRSPACE INTO A SMALL ARPT'S TFC AREA ON A VFR DAY DURING A HOLIDAY WEEKEND OR AT ANY TIME.

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.