Sct controller observed a conflict event involving two air carrier aircraft departing lax; the north...

Narrative:

I was working another sector when I saw this happen and I talked to the radar controller involved. I thought it was very very dangerous and I was shocked that it happened so that's why I'm filing a report. Lax tower cleared an A320 routed south of the north complex runways for a departure into the manhattan radar (manr) sector. Manr has control to turn this aircraft and climb them. About the same time maybe a 1/2 mile offset; a crj-900 routed north was coming off the south complex. These aircraft have to swap out. Manr was never advised about the crj-900 and even though the crj-900 was instructed to maintain visual separation; manr had no idea who that aircraft was. Ninety five percent of the time a departure off the north complex is immediately issued a south bound heading. In this case the controller waited wondering who this unknown target was (crj-900). Had manr done the norm; and turned the A320 south; there not only would have been an ugly loss of separation but a potential mid-air collision. The crj-900 would have freaked out if the A320 had turned. Dangerous and scary! Recommendation; training to lax tower on the proper use of visual separation; requirements to inform departure sector of aircraft using visual and stopped at lower altitude.

Original NASA ASRS Text

Title: SCT Controller observed a conflict event involving two air carrier aircraft departing LAX; the north complex aircraft routed south and a south complex aircraft routed north.

Narrative: I was working another sector when I saw this happen and I talked to the RADAR controller involved. I thought it was very very dangerous and I was shocked that it happened so that's why I'm filing a report. LAX Tower cleared an A320 routed south of the north complex runways for a departure into the Manhattan RADAR (MANR) Sector. MANR has control to turn this aircraft and climb them. About the same time maybe a 1/2 mile offset; a CRJ-900 routed north was coming off the south complex. These aircraft have to swap out. MANR was never advised about the CRJ-900 and even though the CRJ-900 was instructed to maintain visual separation; MANR had no idea who that aircraft was. Ninety Five percent of the time a departure off the north complex is immediately issued a south bound heading. In this case the controller waited wondering who this unknown target was (CRJ-900). Had MANR done the norm; and turned the A320 south; there not only would have been an ugly loss of separation but a potential MID-AIR collision. The CRJ-900 would have freaked out if the A320 had turned. Dangerous and Scary! Recommendation; training to LAX Tower on the proper use of Visual Separation; requirements to inform Departure Sector of aircraft using visual and stopped at lower altitude.

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.

Attributes
ACN	1121510
Time
Date	201310
Local Time Of Day	1801-2400
Place
Locale Reference	SCT.TRACON
State Reference	CA
Aircraft 1
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Route In Use	Vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Regional Jet 900 (CRJ900)
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Other / Unknown
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Procedural Published Material / Policy

Sct controller observed a conflict event involving two air carrier aircraft departing lax; the north complex aircraft routed south and a south complex aircraft routed north.