Narrative:

Assigned 17000 ft on interception of J149, passing 13000 ft, we got a TCASII advisory from our left quadrant. Quickly turned into an RA which instructed us to descend. PF followed all instructions provided by TCASII. First officer reports closest point of approach was 200 ft above us. Center was advised that we were responding to an RA. We never acquired the aircraft visually nor did center advise of traffic. When queried by first officer, center said it was the other sector's responsibility. Unrelated to the incident, but significant errors occurred to me (us). Callback conversation with reporter revealed the following information: the flight crew stated that the TCASII alert occurred shortly after a frequency change and there was insufficient time for ARTCC to have alerted them of a possible conflict with another aircraft. During the evasive maneuver the reporter stated that there had been a second TCASII RA which directed a further descent. This second event was unrpted. Visual contact was only briefly established with the first aircraft. The only recollection of that aircraft was the distance of 200 ft vertically.

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Original NASA ASRS Text

Title: A B737 FLC RECEIVED A TCASII RA IN CLB. WHEN ASKED WHY AN ADVISORY HAD NOT BEEN ISSUED, ARTCC RESPONSE WAS THAT THE PREVIOUS SECTOR HAD THAT RESPONSIBILITY.

Narrative: ASSIGNED 17000 FT ON INTERCEPTION OF J149, PASSING 13000 FT, WE GOT A TCASII ADVISORY FROM OUR L QUADRANT. QUICKLY TURNED INTO AN RA WHICH INSTRUCTED US TO DSND. PF FOLLOWED ALL INSTRUCTIONS PROVIDED BY TCASII. FO RPTS CLOSEST POINT OF APCH WAS 200 FT ABOVE US. CTR WAS ADVISED THAT WE WERE RESPONDING TO AN RA. WE NEVER ACQUIRED THE ACFT VISUALLY NOR DID CTR ADVISE OF TFC. WHEN QUERIED BY FO, CTR SAID IT WAS THE OTHER SECTOR'S RESPONSIBILITY. UNRELATED TO THE INCIDENT, BUT SIGNIFICANT ERRORS OCCURRED TO ME (US). CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE FLC STATED THAT THE TCASII ALERT OCCURRED SHORTLY AFTER A FREQ CHANGE AND THERE WAS INSUFFICIENT TIME FOR ARTCC TO HAVE ALERTED THEM OF A POSSIBLE CONFLICT WITH ANOTHER ACFT. DURING THE EVASIVE MANEUVER THE RPTR STATED THAT THERE HAD BEEN A SECOND TCASII RA WHICH DIRECTED A FURTHER DSCNT. THIS SECOND EVENT WAS UNRPTED. VISUAL CONTACT WAS ONLY BRIEFLY ESTABLISHED WITH THE FIRST ACFT. THE ONLY RECOLLECTION OF THAT ACFT WAS THE DISTANCE OF 200 FT VERTLY.

Data retrieved from NASA's ASRS site as of July 2007 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.