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ZDC controller reported an near midair collision between an aircraft under ZDC's control and an unseen VFR aircraft.
| Attributes | |
| ACN | 1722455 |
| Time | |
| Date | 202001 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZDC.ARTCC |
| State Reference | VA |
| Aircraft 1 | |
| Make Model Name | Beechcraft / Beech Aircraft Corp Undifferentiated or Other Model |
| Flight Phase | Cruise |
| Flight Plan | VFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | Cruise |
| Person 1 | |
| Function | Enroute |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 28 |
| Events | |
| Anomaly | Conflict NMAC |
Narrative:
I accepted a hand off on aircraft X from gso approach. He was flying from int to ipt; VFR/035. Sector traffic was light at this time. When I handed him off to roa approach; sector complexity had increased. I had an aircraft on approach into dan. A previously issued restriction to an aircraft landing gso had to be amended when I received traffic for him from ZTL. In addition multiple departures when coming out of the washington metro area. When I attempted to transfer communications to roa; multiple aircraft were calling and I don't believe he heard the change request clearly. Shortly afterward he asked me if I had seen VFR traffic for him and that he almost had a mid-air collision. When he said that; I had seen the target that was now behind him. He then asked for the correct roa frequency.I was working on a big sector range to cover my airspace. This does minimize my view of the areas where VFR targets are more prominent. Working on a smaller range may be possible. There was a short burst of IFR transitional traffic that took my attention away from VFR traffic. A cpc d-side may have helped in this situation. Possibly knowing of a short burst in traffic volume may have helped.
Original NASA ASRS Text
Title: ZDC Controller reported an NMAC between an aircraft under ZDC's control and an unseen VFR aircraft.
Narrative: I accepted a hand off on Aircraft X from GSO approach. He was flying from INT to IPT; VFR/035. Sector traffic was light at this time. When I handed him off to ROA approach; sector complexity had increased. I had an aircraft on approach into DAN. A previously issued restriction to an aircraft landing GSO had to be amended when I received traffic for him from ZTL. In addition multiple departures when coming out of the Washington Metro Area. When I attempted to transfer communications to ROA; multiple aircraft were calling and I don't believe he heard the change request clearly. Shortly afterward he asked me if I had seen VFR traffic for him and that he almost had a mid-air collision. When he said that; I had seen the target that was now behind him. He then asked for the correct ROA frequency.I was working on a big sector range to cover my airspace. This does minimize my view of the areas where VFR targets are more prominent. Working on a smaller range may be possible. There was a short burst of IFR transitional traffic that took my attention away from VFR traffic. A CPC D-side may have helped in this situation. Possibly knowing of a short burst in traffic volume may have helped.
Data retrieved from NASA's ASRS site 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.