Air carrier captain reported a traffic resolution advisory during climb from lgb due to VFR traffic.

Attributes
ACN	1611446
Time
Date	201901
Place
Locale Reference	LGB.Airport
State Reference	CA
Aircraft 1
Make Model Name	Medium Large Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	Captain
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Events
Anomaly	Conflict Airborne Conflict Deviation - Altitude Undershoot

Narrative:

During departure and climbout of lgb we received a TCAS RA with a monitor vertical speed command. The conflicting VFR aircraft was +500 while we were level at our assigned altitude of 3;000 feet. We made sure that we complied with the command by not climbing anymore; the aircraft above cleared our path and we were given a new climb clearance to a higher altitude. We were able to see the other aircraft during the event and they appeared to remain +500 above us at all times. Once we were clear of conflict; we returned to normal operations and the flight continued without further incident.

Original NASA ASRS Text

Title: Air Carrier Captain reported a Traffic Resolution Advisory during climb from LGB due to VFR traffic.

Narrative: During departure and climbout of LGB we received a TCAS RA with a Monitor Vertical Speed command. The conflicting VFR aircraft was +500 while we were level at our assigned altitude of 3;000 feet. We made sure that we complied with the command by not climbing anymore; the aircraft above cleared our path and we were given a new climb clearance to a higher altitude. We were able to see the other aircraft during the event and they appeared to remain +500 above us at all times. Once we were clear of conflict; we returned to normal operations and the flight continued without further incident.

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.