Narrative:

While on the departure from bur; we were given a clearance to level off at 6;000 feet due to traffic. After level off at 6;000 feet; ATC gave us a vector to a heading of 290 to avoid traffic now approaching our 12 o'clock position. As we began our turn; the TCAS system initiated a resolution advisory and provided descent guidance. I disconnected the autopilot and autothrottle and complied with the TCAS guidance. I initiated a descent to avoid the intruder aircraft and we notified ATC of our TCAS RA event. At an altitude of 5;700 feet; I received the 'clear of conflict' alert from the TCAS system. We noticed while level at 5;700 feet; the TCAS system was showing the intruder aircraft 400 feet above our aircraft. When clear of all traffic ATC provided clearance to climb and instructed us to proceed back on our filed flight plan. The remainder of the flight was uneventful.I think this event could have been avoided with better separation from the other aircraft. I am unsure if the intruder aircraft was at the proper altitude it was cleared to; or if this event was caused by lack of ATC separation.

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Original NASA ASRS Text

Title: B737 flight crew reported an NMAC with another aircraft during departure from BUR.

Narrative: While on the departure from BUR; we were given a clearance to level off at 6;000 feet due to traffic. After level off at 6;000 feet; ATC gave us a vector to a heading of 290 to avoid traffic now approaching our 12 o'clock position. As we began our turn; the TCAS system initiated a Resolution Advisory and provided descent guidance. I disconnected the autopilot and autothrottle and complied with the TCAS guidance. I initiated a descent to avoid the intruder aircraft and we notified ATC of our TCAS RA event. At an altitude of 5;700 feet; I received the 'Clear of Conflict' alert from the TCAS system. We noticed while level at 5;700 feet; the TCAS system was showing the intruder aircraft 400 feet above our aircraft. When clear of all traffic ATC provided clearance to climb and instructed us to proceed back on our filed flight plan. The remainder of the flight was uneventful.I think this event could have been avoided with better separation from the other aircraft. I am unsure if the intruder aircraft was at the proper altitude it was cleared to; or if this event was caused by lack of ATC separation.

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.