Sct controller described conflict event involving an air carrier departure from lgb and a VFR aircra...

Narrative:

I was the instructor training a student early in the morning with light traffic. Both the trainee and I noticed a VFR aircraft maneuvering off the departure end of lgb at 3800 indicated. An air carrier departed lgb climbing to 3000. The trainee climbed the air carrier to 7000 and told to expedite for traffic to get above the 3800 VFR and a 6000 IFR. The air carrier turned to a heading of 180 as per the departure procedure. This course and rate of climb would have cleared both aircraft but the unidentified VFR turned and descended suddenly at the air carrier. The trainee issued traffic about 1.5 miles apart. The air carrier responded saying that they were descending for a TCAS-RA. The air carrier descended from 3200 to 3000 then shortly resumed his climb as traffic passed behind. The departure end of lgb is dangerous due to the many VFR aircraft. Recommendation; I recommend making lgb class C airspace.

Original NASA ASRS Text

Title: SCT Controller described conflict event involving an air carrier departure from LGB and a VFR aircraft not in contact with ATC; the reporter suggesting LGB be designed as Class C airspace.

Narrative: I was the Instructor training a Student early in the morning with light traffic. Both the Trainee and I noticed a VFR aircraft maneuvering off the departure end of LGB at 3800 indicated. An air carrier departed LGB climbing to 3000. The Trainee climbed the air carrier to 7000 and told to expedite for traffic to get above the 3800 VFR and a 6000 IFR. The air carrier turned to a heading of 180 as per the departure procedure. This course and rate of climb would have cleared both aircraft but the unidentified VFR turned and descended suddenly at the air carrier. The Trainee issued traffic about 1.5 miles apart. The air carrier responded saying that they were descending for a TCAS-RA. The air carrier descended from 3200 to 3000 then shortly resumed his climb as traffic passed behind. The departure end of LGB is dangerous due to the many VFR aircraft. Recommendation; I recommend making LGB Class C airspace.

Data retrieved from NASA's ASRS site as of April 2012 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	872171
Time
Date	201002
Local Time Of Day	1201-1800
Place
Locale Reference	SCT.TRACON
State Reference	CA
Aircraft 1
Make Model Name	Medium Large Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Instructor Approach Departure
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	Conflict Airborne Conflict

Sct controller described conflict event involving an air carrier departure from lgb and a VFR aircraft not in contact with ATC; the reporter suggesting lgb be designed as class C airspace.