ZLA controller lost separation, one aircraft at cruise, the other climbing.

Attributes
ACN	574221
Time
Date	200302
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : ehf.vortac
State Reference	CA
Altitude	msl single value : 33000
Environment
Flight Conditions	VMC
Weather Elements	Turbulence
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zla.artcc
Operator	general aviation : corporate
Make Model Name	Citationjet, C525/C526
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 11 controller time certified in position1 : 11
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller time certified in position1 : 12 flight time total : 120
ASRS Report	574226
Events
Anomaly	conflict : airborne critical non adherence : required legal separation
Independent Detector	atc equipment : conflict alert other controllera other controllerb
Resolutory Action	controller : issued alert flight crew : took evasive action
Consequence	faa : investigated
Miss Distance	horizontal : 6000 vertical : 1400
Supplementary
Problem Areas	Weather Airspace Structure ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

We were very busy working heavy traffic, in a very complex sector. Many aircraft were traveling between the bay area and phx. Tmu required my sector to issue rertes to these aircraft. I climbed aircraft Y (C525) to FL350. He came within 1400 ft and 1 mi with aircraft X (MD80). I stopped aircraft Y at FL320 and issued turns to both aircraft. There were many factors that contributed to this error, including volume of traffic, turbulence, traffic complexity, tmu rertes and tmu mi in trail.

Original NASA ASRS Text

Title: ZLA CTLR LOST SEPARATION, ONE ACFT AT CRUISE, THE OTHER CLBING.

Narrative: WE WERE VERY BUSY WORKING HVY TFC, IN A VERY COMPLEX SECTOR. MANY ACFT WERE TRAVELING BTWN THE BAY AREA AND PHX. TMU REQUIRED MY SECTOR TO ISSUE RERTES TO THESE ACFT. I CLBED ACFT Y (C525) TO FL350. HE CAME WITHIN 1400 FT AND 1 MI WITH ACFT X (MD80). I STOPPED ACFT Y AT FL320 AND ISSUED TURNS TO BOTH ACFT. THERE WERE MANY FACTORS THAT CONTRIBUTED TO THIS ERROR, INCLUDING VOLUME OF TFC, TURB, TFC COMPLEXITY, TMU RERTES AND TMU MI IN TRAIL.

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.