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TRACON TRACON interfacility coordination. TRACON intrafac coordination. Small aircraft X being worked by wrong sector had less than standard separation from small aircraft Y. System error.
| Attributes | |
| ACN | 186111 |
| Time | |
| Date | 199108 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : dqn |
| State Reference | OH |
| Altitude | msl bound lower : 4000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : day |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Experience | controller radar : 2 |
| ASRS Report | 186111 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance non adherence : required legal separation other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 6000 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure Operational Error Inter Facility Coordination Failure |
Narrative:
Wright-patterson AFB (ffo) scheduled a fly-in for GA aircraft. The air force and dayton ATCT allowed well over 600 aircraft, mostly VFR, to arrive unregulated. As a result, the dayton radar controllers, who were to sequence all aircraft to ffo, were overwhelmed. There was much confusion both in the facility and between day and other facilities. Cmh approach rted all ffo arrs over the same fix regardless of route of flight. As a result, automated handoffs flashed at the wrong scopes. Small aircraft X was handed off via automation to another sector but was rted into my airspace and was not switched to my frequency. Due to being overloaded with aircraft and frequency congestion, I didn't have time to find out who was talking to small aircraft X. Small aircraft Y was handed off 5-6 mi in trail of small aircraft X, also at 4000, and was switched to me. 15 mi in my airspace the small aircraft X started a right turn back to the east. I instructed small aircraft Y to turn left immediately and descend to 3000. Small aircraft X did a 360 degree turn and passed 1 mi from small aircraft Y which was descending out of 3700 ft. I called traffic but small aircraft Y didn't see him. A contributing factor was that I had already worked an hour of extremely heavy traffic. In the future (this fly-in is an annual event). Some type of regulation of ffo arrs has to take place.
Original NASA ASRS Text
Title: TRACON TRACON INTERFAC COORD. TRACON INTRAFAC COORD. SMA X BEING WORKED BY WRONG SECTOR HAD LTSS FROM SMA Y. SYS ERROR.
Narrative: WRIGHT-PATTERSON AFB (FFO) SCHEDULED A FLY-IN FOR GA ACFT. THE AIR FORCE AND DAYTON ATCT ALLOWED WELL OVER 600 ACFT, MOSTLY VFR, TO ARRIVE UNREGULATED. AS A RESULT, THE DAYTON RADAR CTLRS, WHO WERE TO SEQUENCE ALL ACFT TO FFO, WERE OVERWHELMED. THERE WAS MUCH CONFUSION BOTH IN THE FACILITY AND BTWN DAY AND OTHER FACILITIES. CMH APCH RTED ALL FFO ARRS OVER THE SAME FIX REGARDLESS OF RTE OF FLT. AS A RESULT, AUTOMATED HDOFS FLASHED AT THE WRONG SCOPES. SMA X WAS HANDED OFF VIA AUTOMATION TO ANOTHER SECTOR BUT WAS RTED INTO MY AIRSPACE AND WAS NOT SWITCHED TO MY FREQ. DUE TO BEING OVERLOADED WITH ACFT AND FREQ CONGESTION, I DIDN'T HAVE TIME TO FIND OUT WHO WAS TALKING TO SMA X. SMA Y WAS HANDED OFF 5-6 MI IN TRAIL OF SMA X, ALSO AT 4000, AND WAS SWITCHED TO ME. 15 MI IN MY AIRSPACE THE SMA X STARTED A R TURN BACK TO THE E. I INSTRUCTED SMA Y TO TURN L IMMEDIATELY AND DSND TO 3000. SMA X DID A 360 DEG TURN AND PASSED 1 MI FROM SMA Y WHICH WAS DSNDING OUT OF 3700 FT. I CALLED TFC BUT SMA Y DIDN'T SEE HIM. A CONTRIBUTING FACTOR WAS THAT I HAD ALREADY WORKED AN HR OF EXTREMELY HVY TFC. IN THE FUTURE (THIS FLY-IN IS AN ANNUAL EVENT). SOME TYPE OF REG OF FFO ARRS HAS TO TAKE PLACE.
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.