Sct controller described a conflict event when right downwind traffic for the south complex was cros...

Attributes
ACN	1133210
Time
Date	201311
Local Time Of Day	1201-1800
Place
Locale Reference	SCT.TRACON
State Reference	CA
Aircraft 1
Make Model Name	Regional Jet 200 ER/LR (CRJ200)
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	Visual Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	Approach
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Conflict NMAC Deviation - Procedural Published Material / Policy

Narrative:

A crj [was] on right downwind for south complex to cross in front of a B737 straight into north complex. Told the crj to expedite descent; straight in traffic would be restricted above him. Never restricted the straight in traffic or issued visual separation to him. The crj crossed directly in front of the B737 with 500 ft of separation and no traffic even issued. The B737 pilot never said anything. Be cognizant that just because you have a plan; it also has to be enacted and make sure it is.

Original NASA ASRS Text

Title: SCT Controller described a conflict event when right downwind traffic for the south complex was crossed in front of straight in traffic for the north complex.

Narrative: A CRJ [was] on right downwind for south complex to cross in front of a B737 straight into north complex. Told the CRJ to expedite descent; straight in traffic would be restricted above him. Never restricted the straight in traffic or issued visual separation to him. The CRJ crossed directly in front of the B737 with 500 FT of separation and no traffic even issued. The B737 pilot never said anything. Be cognizant that just because you have a plan; it also has to be enacted and make sure it is.

Data retrieved from NASA's ASRS site as of July 2013 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.

Sct controller described a conflict event when right downwind traffic for the south complex was crossed in front of straight in traffic for the north complex.