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Near midair collision between a piper PA30, twin comanche, descending to 5000 ft and a commuter jet making a climbing turn. Both aircraft took evasive action and approach controller issued advisory to the reporting pilot of the PA30.
| Attributes | |
| ACN | 480070 |
| Time | |
| Date | 200007 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| State Reference | MA |
| Altitude | msl bound lower : 4700 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | PA-30 Twin Comanche |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : vacating altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : y90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Operating Under FAR Part | Part 119 |
| Flight Phase | climbout : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : multi engine pilot : instrument pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 25 flight time total : 10000 flight time type : 175 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | controller : issued advisory flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 500 vertical : 100 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
In descent to 5000 ft, bdl approach called traffic for us at 11 O'clock position. I spotted traffic and advised ATC that it was in sight. As I continued descent through 5200 ft, commuter jet traffic began a right climbing turn and proceeded toward us. He was on a collision course with our aircraft and I was required to take evasive action. I began an immediate left descending turn toward the north and at the last min the jet executed a left turn and increased his rate of climb. Loss of IFR separation occurred between both aircraft. I reported 'near miss' to bdl approach and also told them that I was at 4700 ft MSL due to my evasive action. Controller said that he was not 'working' that jet aircraft. Flight continued without incident. Upon arrival into destination, orh, I called bdl ATC. Controller said he was not working the jet and he was unaware of what may have caused the aircraft to commence a climbing turn into our flight path.
Original NASA ASRS Text
Title: NMAC BTWN A PIPER PA30, TWIN COMANCHE, DSNDING TO 5000 FT AND A COMMUTER JET MAKING A CLBING TURN. BOTH ACFT TOOK EVASIVE ACTION AND APCH CTLR ISSUED ADVISORY TO THE RPTING PLT OF THE PA30.
Narrative: IN DSCNT TO 5000 FT, BDL APCH CALLED TFC FOR US AT 11 O'CLOCK POS. I SPOTTED TFC AND ADVISED ATC THAT IT WAS IN SIGHT. AS I CONTINUED DSCNT THROUGH 5200 FT, COMMUTER JET TFC BEGAN A R CLBING TURN AND PROCEEDED TOWARD US. HE WAS ON A COLLISION COURSE WITH OUR ACFT AND I WAS REQUIRED TO TAKE EVASIVE ACTION. I BEGAN AN IMMEDIATE L DSNDING TURN TOWARD THE N AND AT THE LAST MIN THE JET EXECUTED A L TURN AND INCREASED HIS RATE OF CLB. LOSS OF IFR SEPARATION OCCURRED BTWN BOTH ACFT. I RPTED 'NEAR MISS' TO BDL APCH AND ALSO TOLD THEM THAT I WAS AT 4700 FT MSL DUE TO MY EVASIVE ACTION. CTLR SAID THAT HE WAS NOT 'WORKING' THAT JET ACFT. FLT CONTINUED WITHOUT INCIDENT. UPON ARR INTO DEST, ORH, I CALLED BDL ATC. CTLR SAID HE WAS NOT WORKING THE JET AND HE WAS UNAWARE OF WHAT MAY HAVE CAUSED THE ACFT TO COMMENCE A CLBING TURN INTO OUR FLT PATH.
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.