Enroute controller described a loss of separation event; listing multiple altitude restrictions due ...

Attributes
ACN	978860
Time
Date	201111
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Aircraft 2
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	Enroute
Qualification	Air Traffic Control Fully Certified
Person 2
Function	Supervisor / CIC
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Inflight Event / Encounter Weather / Turbulence

Narrative:

I was working the sector attempting to provide climbs and descents for various aircraft for turbulence; altitude restrictions; and landing sequencing. In so doing I climbed an aircraft head-on through another aircraft's altitude. When I was aware of the situation I issued turns; but the frequency was blocked due to my transmissions being misunderstood or stepped on. When the aircraft began turns; one aircraft responded to a TCAS RA. I advised the supervisor of the situation. It appears that separation was not lost; but not insured. Possible conditions leading up to this event were turbulence; altitude restrictions; and working alone. When there is moderate turbulence with multiple altitude restrictions and unusual arrival patterns; it is best to have two people at the sector.

Original NASA ASRS Text

Title: Enroute Controller described a loss of separation event; listing multiple altitude restrictions due to turbulence and workload as contributing factors.

Narrative: I was working the Sector attempting to provide climbs and descents for various aircraft for turbulence; altitude restrictions; and landing sequencing. In so doing I climbed an aircraft head-on through another aircraft's altitude. When I was aware of the situation I issued turns; but the frequency was blocked due to my transmissions being misunderstood or stepped on. When the aircraft began turns; one aircraft responded to a TCAS RA. I advised the supervisor of the situation. It appears that separation was not lost; but not insured. Possible conditions leading up to this event were turbulence; altitude restrictions; and working alone. When there is moderate turbulence with multiple altitude restrictions and unusual arrival patterns; it is best to have two people at the sector.

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.

Enroute controller described a loss of separation event; listing multiple altitude restrictions due to turbulence and workload as contributing factors.