Narrative:

I was flying orientation flts in a cessna skyhawk. I departed ZZZ en route to (tan) taunton, ma. I contacted (hya) hyannis tower and reported 8 mi east and would like to transition hya airspace along the north shore at 2500 ft. I was cleared for the transition as requested. When I was approximately halfway through the class D airspace I saw a business class jet at my 8 O'clock position, in a climbing right turn that appeared to be no more than 200-300 ft away. Before I could take any evasive action the jet was past us traveling at a very high rate of speed. I only saw the traffic for a split second as it was extremely close and fast, it appeared as if the jet would have collided with us if it weren't climbing. I was monitoring hya tower frequency the entire time I was in class D airspace, to me the controller sounded moderately busy working both air and ground simultaneously. I didn't hear any traffic alerts for either the departing jet traffic or myself. I'm not even sure the jet traffic ever saw me. If they did, the turn may have been evasive action and they must have seen me at the last possible second to avoid a collision. I did not contact the tower to inform them of the near miss and don't know if they even realized the potential disaster. I assume when in controled airspace the controller controls? Was the controller too busy with ground control? I am reporting this incident to hopefully avoid any future disasters.

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Original NASA ASRS Text

Title: WHILE TRANSITING CLASS D AIRSPACE, A C172 PLT HAS A CLOSE ENCOUNTER WITH A JET ACFT.

Narrative: I WAS FLYING ORIENTATION FLTS IN A CESSNA SKYHAWK. I DEPARTED ZZZ ENRTE TO (TAN) TAUNTON, MA. I CONTACTED (HYA) HYANNIS TWR AND RPTED 8 MI E AND WOULD LIKE TO TRANSITION HYA AIRSPACE ALONG THE N SHORE AT 2500 FT. I WAS CLRED FOR THE TRANSITION AS REQUESTED. WHEN I WAS APPROX HALFWAY THROUGH THE CLASS D AIRSPACE I SAW A BUSINESS CLASS JET AT MY 8 O'CLOCK POS, IN A CLBING R TURN THAT APPEARED TO BE NO MORE THAN 200-300 FT AWAY. BEFORE I COULD TAKE ANY EVASIVE ACTION THE JET WAS PAST US TRAVELING AT A VERY HIGH RATE OF SPD. I ONLY SAW THE TFC FOR A SPLIT SECOND AS IT WAS EXTREMELY CLOSE AND FAST, IT APPEARED AS IF THE JET WOULD HAVE COLLIDED WITH US IF IT WEREN'T CLBING. I WAS MONITORING HYA TWR FREQ THE ENTIRE TIME I WAS IN CLASS D AIRSPACE, TO ME THE CTLR SOUNDED MODERATELY BUSY WORKING BOTH AIR AND GND SIMULTANEOUSLY. I DIDN'T HEAR ANY TFC ALERTS FOR EITHER THE DEPARTING JET TFC OR MYSELF. I'M NOT EVEN SURE THE JET TFC EVER SAW ME. IF THEY DID, THE TURN MAY HAVE BEEN EVASIVE ACTION AND THEY MUST HAVE SEEN ME AT THE LAST POSSIBLE SECOND TO AVOID A COLLISION. I DID NOT CONTACT THE TWR TO INFORM THEM OF THE NEAR MISS AND DON'T KNOW IF THEY EVEN REALIZED THE POTENTIAL DISASTER. I ASSUME WHEN IN CTLED AIRSPACE THE CTLR CTLS? WAS THE CTLR TOO BUSY WITH GND CTL? I AM RPTING THIS INCIDENT TO HOPEFULLY AVOID ANY FUTURE DISASTERS.

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.