Air carrier X had near midair collision with VFR aircraft Y. See and avoid concept.

Attributes
ACN	195482
Time
Date	199111
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : pom
State Reference	CA
Altitude	msl bound lower : 7000 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ont
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 enroute airway : zoa
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : direct
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller non radar : 3 controller radar : 2
ASRS Report	195482
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Miss Distance	horizontal : 300 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Air carrier X shipped to los angeles center at 7000 ft climbing. No traffic observed on radar. Air carrier X then called center advised a private aircraft just went past him at about 7500 ft opposite direction. Center reported to him their radar showed a target eastbound past them at 7500 ft. I scanned air carrier X route prior to transfer to center, did not see traffic.

Original NASA ASRS Text

Title: ACR X HAD NMAC WITH VFR ACFT Y. SEE AND AVOID CONCEPT.

Narrative: ACR X SHIPPED TO LOS ANGELES CENTER AT 7000 FT CLBING. NO TFC OBSERVED ON RADAR. ACR X THEN CALLED CENTER ADVISED A PRIVATE ACFT JUST WENT PAST HIM AT ABOUT 7500 FT OPPOSITE DIRECTION. CENTER RPTED TO HIM THEIR RADAR SHOWED A TARGET EBOUND PAST THEM AT 7500 FT. I SCANNED ACR X RTE PRIOR TO TRANSFER TO CENTER, DID NOT SEE TFC.

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.