Air carrier X had less than standard separation from small transport Y. System error.

Attributes
ACN	194656
Time
Date	199111
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : psp
State Reference	CA
Altitude	msl bound lower : 11000 msl bound upper : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ont tracon : psp
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
ASRS Report	194656
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	horizontal : 9000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Palm springs passed 2 fix estimates to ont TRACON 10000 and air carrier X climbing to 12000. Ont TRACON approved estimates then allowed an small transport Y between them opposite direction at 11000 as air carrier X was climbing. Aircraft came within 1.5 mi.

Original NASA ASRS Text

Title: ACR X HAD LTSS FROM SMT Y. SYS ERROR.

Narrative: PALM SPRINGS PASSED 2 FIX ESTIMATES TO ONT TRACON 10000 AND ACR X CLBING TO 12000. ONT TRACON APPROVED ESTIMATES THEN ALLOWED AN SMT Y BTWN THEM OPPOSITE DIRECTION AT 11000 AS ACR X WAS CLBING. ACFT CAME WITHIN 1.5 MI.

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.