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Controller working arrs and departures from satellite airports around dfw. This is typical at large metropolitan radar facility. Controller got busy at 1 airport and forgot about 2 departures from other satellite airports, allowing less than standard separation to occur.
| Attributes | |
| ACN | 142293 |
| Time | |
| Date | 199004 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ads airport : sjt |
| State Reference | TX |
| Altitude | msl bound lower : 4000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dfw |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 9 |
| ASRS Report | 142293 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation other anomaly other |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 6000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Was working approach/departure control for several airports, both controled and uncontrolled. Departures northbound off addison airport and mckinney, tx, airport were vectored north at 4000', 20 degrees convergence, 15 mi latitude sep. Became extremely busy with arrs to dallas love field (approximately 15 arrs in 5 mins). Forgot about the 2 nbnders and allowed them to converge. Missed by 1 mi. Loss of sep discovered by controllers and collision alert feature of ARTS III. Alternate factors: was during meal hour. Usual rush was ending and supervisors cleared room for dinner breaks. Was working 2 sectors combined, no handoff man, supervisor walked away from the area. Everything happened so fast, never thought to seek assistance (none was available).
Original NASA ASRS Text
Title: CTLR WORKING ARRS AND DEPS FROM SATELLITE ARPTS AROUND DFW. THIS IS TYPICAL AT LARGE METRO RADAR FAC. CTLR GOT BUSY AT 1 ARPT AND FORGOT ABOUT 2 DEPS FROM OTHER SATELLITE ARPTS, ALLOWING LESS THAN STANDARD SEPARATION TO OCCUR.
Narrative: WAS WORKING APCH/DEP CTL FOR SEVERAL ARPTS, BOTH CTLED AND UNCONTROLLED. DEPS NBOUND OFF ADDISON ARPT AND MCKINNEY, TX, ARPT WERE VECTORED N AT 4000', 20 DEGS CONVERGENCE, 15 MI LAT SEP. BECAME EXTREMELY BUSY WITH ARRS TO DALLAS LOVE FIELD (APPROX 15 ARRS IN 5 MINS). FORGOT ABOUT THE 2 NBNDERS AND ALLOWED THEM TO CONVERGE. MISSED BY 1 MI. LOSS OF SEP DISCOVERED BY CTLRS AND COLLISION ALERT FEATURE OF ARTS III. ALTERNATE FACTORS: WAS DURING MEAL HR. USUAL RUSH WAS ENDING AND SUPVRS CLRED ROOM FOR DINNER BREAKS. WAS WORKING 2 SECTORS COMBINED, NO HDOF MAN, SUPVR WALKED AWAY FROM THE AREA. EVERYTHING HAPPENED SO FAST, NEVER THOUGHT TO SEEK ASSISTANCE (NONE WAS AVAILABLE).
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.