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While attempting to vector air carrier around traffic, separation was lost between an aircraft on another route and the air carrier.
| Attributes | |
| ACN | 113264 |
| Time | |
| Date | 198906 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ldn |
| State Reference | VA |
| Altitude | msl bound lower : 25000 msl bound upper : 25800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 113264 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 12600 vertical : 800 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
At the time of this occurrence I had 8 aircraft on the frequency. In my opinion I was busy. In my attempt to vector air carrier X around a slower moving aircraft on the same airway, I got him too close to another aircraft on another airway. I tried to effect altitude separation but it was too late. The closest they came was 2.1 mi and 800'. This is the first error I have had in 20 yrs as a controller at ZDC. I'm not sure what caused this but I suppose I could have exercised more awareness.
Original NASA ASRS Text
Title: WHILE ATTEMPTING TO VECTOR ACR AROUND TRAFFIC, SEPARATION WAS LOST BETWEEN AN ACFT ON ANOTHER ROUTE AND THE ACR.
Narrative: AT THE TIME OF THIS OCCURRENCE I HAD 8 ACFT ON THE FREQ. IN MY OPINION I WAS BUSY. IN MY ATTEMPT TO VECTOR ACR X AROUND A SLOWER MOVING ACFT ON THE SAME AIRWAY, I GOT HIM TOO CLOSE TO ANOTHER ACFT ON ANOTHER AIRWAY. I TRIED TO EFFECT ALT SEPARATION BUT IT WAS TOO LATE. THE CLOSEST THEY CAME WAS 2.1 MI AND 800'. THIS IS THE FIRST ERROR I HAVE HAD IN 20 YRS AS A CTLR AT ZDC. I'M NOT SURE WHAT CAUSED THIS BUT I SUPPOSE I COULD HAVE EXERCISED MORE AWARENESS.
Data retrieved from NASA's ASRS site as of August 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.