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|
Attributes | |
ACN | 117876 |
Time | |
Date | 198907 |
Day | Wed |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | atc facility : pdk airport : atl |
State Reference | GA |
Altitude | msl bound lower : 5000 msl bound upper : 5000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | tracon : atl |
Operator | general aviation : personal |
Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
Flight Phase | cruise other |
Flight Plan | IFR |
Aircraft 2 | |
Operator | other |
Make Model Name | Military Transport |
Flight Phase | descent other |
Flight Plan | IFR |
Person 1 | |
Affiliation | government : faa |
Function | controller : approach |
Qualification | controller : radar |
ASRS Report | 117876 |
Person 2 | |
Affiliation | government : faa |
Function | controller : approach |
Qualification | controller : radar |
ASRS Report | 117991 |
Events | |
Anomaly | conflict : airborne less severe non adherence : required legal separation |
Independent Detector | other controllera |
Resolutory Action | controller : issued new clearance |
Consequence | Other |
Miss Distance | horizontal : 12000 vertical : 0 |
Supplementary | |
Primary Problem | ATC Human Performance |
Air Traffic Incident | Operational Error |
Narrative:
Small aircraft X was being worked by sat F going direct spa at 5000 with a pointout to the sat right controller. Mlt Y was inbound from 40 northeast of atl at 8000 being worked by sat P controller. There was training in progress on sat P. The instructor was distracted by a landline call and the P controller descended mlt Y to 5000. I observed mlt Y when he was 3 mi head on to my traffic at 5000. I issued traffic to small aircraft X and turned the aircraft to a heading of 360 degree. I heard the P controller turn mlt Y to a heading of 180 degree twice, but didn't see the target turn, so I turned small aircraft X to a heading of 270 degree and started to descend small aircraft X. At this time I was told mlt Y had small aircraft X in sight so I left small aircraft X at 5000.
Original NASA ASRS Text
Title: MLT WAS ISSUED A DESCENT BY A TRAINEE AND CONFLICTED WITH OPPOSITE DIRECTION TRAFFIC.
Narrative: SMA X WAS BEING WORKED BY SAT F GOING DIRECT SPA AT 5000 WITH A POINTOUT TO THE SAT R CTLR. MLT Y WAS INBND FROM 40 NE OF ATL AT 8000 BEING WORKED BY SAT P CTLR. THERE WAS TRAINING IN PROGRESS ON SAT P. THE INSTRUCTOR WAS DISTRACTED BY A LANDLINE CALL AND THE P CTLR DESCENDED MLT Y TO 5000. I OBSERVED MLT Y WHEN HE WAS 3 MI HEAD ON TO MY TFC AT 5000. I ISSUED TFC TO SMA X AND TURNED THE ACFT TO A HDG OF 360 DEG. I HEARD THE P CTLR TURN MLT Y TO A HDG OF 180 DEG TWICE, BUT DIDN'T SEE THE TARGET TURN, SO I TURNED SMA X TO A HDG OF 270 DEG AND STARTED TO DSND SMA X. AT THIS TIME I WAS TOLD MLT Y HAD SMA X IN SIGHT SO I LEFT SMA X AT 5000.
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.