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A VFR light transport, under radar surveillance, had an near midair collision with an IFR large transport.
| Attributes | |
| ACN | 221343 |
| Time | |
| Date | 199209 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : isp |
| State Reference | NY |
| Altitude | msl bound lower : 10500 msl bound upper : 10500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent other |
| Route In Use | arrival other |
| Flight Plan | VFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 4500 flight time type : 250 |
| ASRS Report | 221343 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 3200 flight time type : 250 |
| ASRS Report | 221447 |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 400 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
40 NM northwest of isp, we started our descent into isp. My first officer was flying. After we were handed off to new york TRACON (frequency 126.80) we told him that we were descending through (12000- 11000) and he said 'roger.' about 1 min later, I caught sight of an aircraft at our 2 O'clock position moving left across our 12 O'clock position. I called traffic to my first officer who immediately banked the aircraft right and we passed within 300-500 ft behind the air carrier large transport. We passed right through the large transport's wake turbulence. After we passed each other, the controller called us and said 'you have traffic, air carrier large transport, passing off your left side.' I replied 'roger, we made a turn to avoid him.' this was his only communication with us concerning the large transport traffic, and as far as I know, no communication was made with large transport. If we had not been maintaining VFR awareness on our flight, we would have not seen the large transport and a major accident may have happened. After landing isp, I called the new york TRACON and reported the occurrence. I'm not sure what happened in that radar room, but I know it was much too close in the air. As a matter of fact, that is exactly what the large transport pilot said to the controller after we passed.
Original NASA ASRS Text
Title: A VFR LTT, UNDER RADAR SURVEILLANCE, HAD AN NMAC WITH AN IFR LGT.
Narrative: 40 NM NW OF ISP, WE STARTED OUR DSCNT INTO ISP. MY FO WAS FLYING. AFTER WE WERE HANDED OFF TO NEW YORK TRACON (FREQ 126.80) WE TOLD HIM THAT WE WERE DSNDING THROUGH (12000- 11000) AND HE SAID 'ROGER.' ABOUT 1 MIN LATER, I CAUGHT SIGHT OF AN ACFT AT OUR 2 O'CLOCK POS MOVING L ACROSS OUR 12 O'CLOCK POS. I CALLED TFC TO MY FO WHO IMMEDIATELY BANKED THE ACFT R AND WE PASSED WITHIN 300-500 FT BEHIND THE ACR LGT. WE PASSED RIGHT THROUGH THE LGT'S WAKE TURB. AFTER WE PASSED EACH OTHER, THE CTLR CALLED US AND SAID 'YOU HAVE TFC, ACR LGT, PASSING OFF YOUR L SIDE.' I REPLIED 'ROGER, WE MADE A TURN TO AVOID HIM.' THIS WAS HIS ONLY COM WITH US CONCERNING THE LGT TFC, AND AS FAR AS I KNOW, NO COM WAS MADE WITH LGT. IF WE HAD NOT BEEN MAINTAINING VFR AWARENESS ON OUR FLT, WE WOULD HAVE NOT SEEN THE LGT AND A MAJOR ACCIDENT MAY HAVE HAPPENED. AFTER LNDG ISP, I CALLED THE NEW YORK TRACON AND RPTED THE OCCURRENCE. I'M NOT SURE WHAT HAPPENED IN THAT RADAR ROOM, BUT I KNOW IT WAS MUCH TOO CLOSE IN THE AIR. AS A MATTER OF FACT, THAT IS EXACTLY WHAT THE LGT PLT SAID TO THE CTLR AFTER WE PASSED.
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.