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ZDC controller initiates incomplete coordination with adjoining sector controller for B738 in WX deviation which results in a loss of separation with a B733.
| Attributes | |
| ACN | 557189 |
| Time | |
| Date | 200207 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : fkn.vortac |
| State Reference | VA |
| Altitude | msl bound lower : 29700 msl bound upper : 31000 |
| Environment | |
| Weather Elements | Thunderstorm |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar pilot : instrument |
| Experience | controller radar : 13 controller time certified in position1 : 3 flight time total : 2000 |
| ASRS Report | 557189 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Events | |
| Anomaly | inflight encounter : weather non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert aircraft equipment other aircraft equipment : wx radar |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 21000 vertical : 1400 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance Weather |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure Operational Error |
Narrative:
The night of the occurrence, there were numerous thunderstorms. 95% of the traffic I was working were deviating. This one aircraft was off course due to WX. This required several pointouts to 4 different sectors. On one of the pointouts, I did not mention that the aircraft was deviating, but the aircraft was obviously off course. This aircraft was descending to FL280 leaving FL297. Lost separation with aircraft #2 who was at FL310.
Original NASA ASRS Text
Title: ZDC CTLR INITIATES INCOMPLETE COORD WITH ADJOINING SECTOR CTLR FOR B738 IN WX DEV WHICH RESULTS IN A LOSS OF SEPARATION WITH A B733.
Narrative: THE NIGHT OF THE OCCURRENCE, THERE WERE NUMEROUS TSTMS. 95% OF THE TFC I WAS WORKING WERE DEVIATING. THIS ONE ACFT WAS OFF COURSE DUE TO WX. THIS REQUIRED SEVERAL POINTOUTS TO 4 DIFFERENT SECTORS. ON ONE OF THE POINTOUTS, I DID NOT MENTION THAT THE ACFT WAS DEVIATING, BUT THE ACFT WAS OBVIOUSLY OFF COURSE. THIS ACFT WAS DSNDING TO FL280 LEAVING FL297. LOST SEPARATION WITH ACFT #2 WHO WAS AT FL310.
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.