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MD80 at 700 ft on final for runway 4R at bos experienced near midair collision with C410 on visual approach to runway 4L.
| Attributes | |
| ACN | 705622 |
| Time | |
| Date | 200608 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bos.airport |
| State Reference | MA |
| Altitude | agl single value : 700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : bos.tower tracon : pct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | MD-83 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 4l |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : bos.tower |
| Operator | common carrier : air taxi |
| Make Model Name | Cessna Twin Piston Undifferentiated or Other Model |
| Operating Under FAR Part | Part 135 |
| Flight Phase | descent : approach |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 705622 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 705776 |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | aircraft equipment : tcas other flight crewa other flight crewb |
| Resolutory Action | flight crew : took precautionary avoidance action |
| Miss Distance | horizontal : 300 vertical : 100 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
At 700 ft on final approach to runway 4R at boston; a C410 passed approximately 300 ft in front of us approximately 100 ft below us at a 90 degree angle. The first officer was PF and started reacting to a TCAS RA; but the RA went away quickly and he recovered his approach to runway 4R. I told tower we were reporting a near midair collision. We had earlier heard boston approach tell air carrier Y to maintain a visual on us and follow us for his visual approach to runway 4L. When we noticed his location to our right and below us we were surprised. This was too close to ignore.
Original NASA ASRS Text
Title: MD80 AT 700 FT ON FINAL FOR RWY 4R AT BOS EXPERIENCED NMAC WITH C410 ON VISUAL APCH TO RWY 4L.
Narrative: AT 700 FT ON FINAL APCH TO RWY 4R AT BOSTON; A C410 PASSED APPROX 300 FT IN FRONT OF US APPROX 100 FT BELOW US AT A 90 DEG ANGLE. THE FO WAS PF AND STARTED REACTING TO A TCAS RA; BUT THE RA WENT AWAY QUICKLY AND HE RECOVERED HIS APCH TO RWY 4R. I TOLD TWR WE WERE RPTING A NEAR MIDAIR COLLISION. WE HAD EARLIER HEARD BOSTON APCH TELL ACR Y TO MAINTAIN A VISUAL ON US AND FOLLOW US FOR HIS VISUAL APCH TO RWY 4L. WHEN WE NOTICED HIS LOCATION TO OUR R AND BELOW US WE WERE SURPRISED. THIS WAS TOO CLOSE TO IGNORE.
Data retrieved from NASA's ASRS site as of January 2009 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.