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ZDC associate controller (d-side) alerts r-side controller of potential conflict who advises the problem is taken care of, and then looses separation with the 2 aircraft.
| Attributes | |
| ACN | 525556 |
| Time | |
| Date | 200109 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bwi.airport |
| State Reference | MD |
| Altitude | msl single value : 24000 |
| Environment | |
| Flight Conditions | Mixed |
| Weather Elements | Thunderstorm |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc tower : aus.tower |
| Operator | general aviation : corporate |
| Make Model Name | Falcon 900 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | general aviation : corporate |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 14 controller time certified in position1 : 7 |
| ASRS Report | 525556 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 22200 vertical : 100 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft X en route to teb, given descent to FL240. Aircraft Y, traveling east to west at FL240, advised radar controller of 2 aircraft in confliction and how to solve the problem. R-side advised me problem was taken care of, but 3 mins later, aircraft X showed level FL240, 5 mi apart and action was again taken by r-side. Separation lost.
Original NASA ASRS Text
Title: ZDC ASSOCIATE CTLR (D-SIDE) ALERTS R-SIDE CTLR OF POTENTIAL CONFLICT WHO ADVISES THE PROB IS TAKEN CARE OF, AND THEN LOOSES SEPARATION WITH THE 2 ACFT.
Narrative: ACFT X ENRTE TO TEB, GIVEN DSCNT TO FL240. ACFT Y, TRAVELING E TO W AT FL240, ADVISED RADAR CTLR OF 2 ACFT IN CONFLICTION AND HOW TO SOLVE THE PROB. R-SIDE ADVISED ME PROB WAS TAKEN CARE OF, BUT 3 MINS LATER, ACFT X SHOWED LEVEL FL240, 5 MI APART AND ACTION WAS AGAIN TAKEN BY R-SIDE. SEPARATION LOST.
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.