Reporter had been at the sector for a short time. Reporter lost standard separation between aircraft...

Attributes
ACN	446438
Time
Date	199908
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : sie.vortac
State Reference	NJ
Altitude	msl bound lower : 24000 msl bound upper : 26000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc tower : vld.tower
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
ASRS Report	446438
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : error detection other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	faa : investigated
Miss Distance	horizontal : 25200 vertical : 600
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

I had just taken over the sector 15 mins prior to the loss of separation. I climbed aircraft Y to FL250 and called traffic on aircraft X. I descended aircraft X from FL260 to FL240 and the loss of separation occurred. This was my 6TH work day in a row.

Original NASA ASRS Text

Title: RPTR HAD BEEN AT THE SECTOR FOR A SHORT TIME. RPTR LOST STANDARD SEPARATION BTWN ACFT X AND ACFT Y.

Narrative: I HAD JUST TAKEN OVER THE SECTOR 15 MINS PRIOR TO THE LOSS OF SEPARATION. I CLBED ACFT Y TO FL250 AND CALLED TFC ON ACFT X. I DSNDED ACFT X FROM FL260 TO FL240 AND THE LOSS OF SEPARATION OCCURRED. THIS WAS MY 6TH WORK DAY IN A ROW.

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.

Reporter had been at the sector for a short time. Reporter lost standard separation between aircraft X and aircraft Y.