<< >> NASA ASRS Report 862124, November 2009

ZMP controller described loss of separation event at FL250 between two air carrier aircraft during and/or immediately following a position relief briefing.

Attributes
ACN	862124
Time
Date	200911
Local Time Of Day	0001-0600
Place
Locale Reference	ZMP.ARTCC
State Reference	MN
Aircraft 1
Make Model Name	Medium Large Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Aircraft 2
Make Model Name	Medium Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Descent
Route In Use	STAR KASPR
Flight Plan	IFR
Person 1
Qualification	Air Traffic Control Fully Certified
Person 2
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict

Narrative:

I assumed the radar position from the previous controller and his trainee. I immediately noticed air carrier X and air carrier Y were in conflict. I issued traffic to air carrier X and told him to turn and climb. Air carrier X advised he had to descend and I cleared him to descend. Air carrier Y was in communication with another controller who issued instructions to it. Recommendation; better sector awareness.

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Original NASA ASRS Text

Title: ZMP controller described loss of separation event at FL250 between two air carrier aircraft during and/or immediately following a position relief briefing.

Narrative: I assumed the radar position from the previous controller and his trainee. I immediately noticed Air Carrier X and Air Carrier Y were in conflict. I issued traffic to Air Carrier X and told him to turn and climb. Air Carrier X advised he had to descend and I cleared him to descend. Air Carrier Y was in communication with another controller who issued instructions to it. Recommendation; better sector awareness.

Data retrieved from NASA's ASRS site as of April 2012 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.