Narrative:

Aircraft X was on a vector for visual approach [to sna] level at 5000 feet. They were above much of the VFR traffic. I was busy issuing instructions to other aircraft when aircraft X reported getting within 200 feet of an untagged VFR traffic. At the same time the conflict alert turned on. Recommend class bravo airspace for lgb airport so VFR traffic cannot conflict with IFR in this vicinity. Also with more people working; extra set of eyes can prevent unsafe situations.

Google
 

Original NASA ASRS Text

Title: SCT TRACON Controller reported an aircraft had an NMAC with an unidentified VFR aircraft in the vicinity of LGB.

Narrative: Aircraft X was on a vector for visual approach [to SNA] level at 5000 feet. They were above much of the VFR traffic. I was busy issuing instructions to other aircraft when Aircraft X reported getting within 200 feet of an untagged VFR traffic. At the same time the conflict alert turned on. Recommend class Bravo airspace for LGB airport so VFR traffic cannot conflict with IFR in this vicinity. Also with more people working; extra set of eyes can prevent unsafe situations.

Data retrieved from NASA's ASRS site 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.