Narrative:

The captain was flying this leg on an IFR flight from ewr to bed. Everything was normal until the aircraft departed dreem intersection. We were instructed to descend to 3000 ft. After leveling at 3000 ft, an aircraft was observed at our altitude and 12 O'clock closing fast. A descent was initiated with a slight right turn. The aircraft, a piper tomahawk, passed approximately 300 ft above and to our left. Approach was advised of our descent and the reason. Approach acknowledged and instructed us to climb back to 3000 ft when we were clear. The descent was stopped at 2400 ft and we climbed back to 3000 ft. The other aircraft was spotted in sufficient time to make a descent that did not alarm the passenger in back. This should be a lesson to all of us that, even though we are on an IFR flight plan in positive radar control, we still need to look outside for that one unrpted aircraft that could be in conflict with us.

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Original NASA ASRS Text

Title: CAPT OF CPR JET TOOK EVASIVE ACTION BY DSNDING AFTER OBSERVING AN ACFT AT THE SAME ALT COMING STRAIGHT AT THEM.

Narrative: THE CAPT WAS FLYING THIS LEG ON AN IFR FLT FROM EWR TO BED. EVERYTHING WAS NORMAL UNTIL THE ACFT DEPARTED DREEM INTXN. WE WERE INSTRUCTED TO DSND TO 3000 FT. AFTER LEVELING AT 3000 FT, AN ACFT WAS OBSERVED AT OUR ALT AND 12 O'CLOCK CLOSING FAST. A DSCNT WAS INITIATED WITH A SLIGHT R TURN. THE ACFT, A PIPER TOMAHAWK, PASSED APPROX 300 FT ABOVE AND TO OUR L. APCH WAS ADVISED OF OUR DSCNT AND THE REASON. APCH ACKNOWLEDGED AND INSTRUCTED US TO CLB BACK TO 3000 FT WHEN WE WERE CLR. THE DSCNT WAS STOPPED AT 2400 FT AND WE CLBED BACK TO 3000 FT. THE OTHER ACFT WAS SPOTTED IN SUFFICIENT TIME TO MAKE A DSCNT THAT DID NOT ALARM THE PAX IN BACK. THIS SHOULD BE A LESSON TO ALL OF US THAT, EVEN THOUGH WE ARE ON AN IFR FLT PLAN IN POSITIVE RADAR CTL, WE STILL NEED TO LOOK OUTSIDE FOR THAT ONE UNRPTED ACFT THAT COULD BE IN CONFLICT WITH US.

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.