MTR X had less than standard separation from air carrier Y system error. Potential conflict.

Attributes
ACN	183576
Time
Date	199107
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ila
State Reference	CA
Altitude	msl bound lower : 22000 msl bound upper : 22000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa
Operator	other
Make Model Name	Military Transport
Flight Phase	descent other
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : developmental
Experience	controller radar : 2
ASRS Report	183576
Person 2
Affiliation	government : faa
Function	controller : radar oversight : supervisor
Qualification	controller : radar
Experience	controller radar : 10
ASRS Report	183716
Events
Anomaly	non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified
Resolutory Action	none taken : anomaly accepted
Consequence	faa : investigated
Miss Distance	horizontal : 24000 vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Mlt X sebound descending into sacramento. Air carrier Y climbing northbound to FL310. Both aircraft expedited to assigned altitude. Supplemental information from acn 183717: air carrier Y was climbing out of bay area en route to medford. MTR X was around point reyes descending in sacramento complex, heading eastbound, control instructions were given to expedite the climb and descent, however it was not enough to maintain separation.

Original NASA ASRS Text

Title: MTR X HAD LTSS FROM ACR Y SYS ERROR. POTENTIAL CONFLICT.

Narrative: MLT X SEBOUND DSNDING INTO SACRAMENTO. ACR Y CLBING NBOUND TO FL310. BOTH ACFT EXPEDITED TO ASSIGNED ALT. SUPPLEMENTAL INFO FROM ACN 183717: ACR Y WAS CLBING OUT OF BAY AREA ENRTE TO MEDFORD. MTR X WAS AROUND POINT REYES DSNDING IN SACRAMENTO COMPLEX, HDG EBOUND, CTL INSTRUCTIONS WERE GIVEN TO EXPEDITE THE CLB AND DSCNT, HOWEVER IT WAS NOT ENOUGH TO MAINTAIN SEPARATION.

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.