Narrative:

Location: vkz 018 degree radial south of heatt. As we descended through 10800 ft on the heatt arrival, we received a TA. I went to the 5 mi scale and observed a target at approximately 12:30 position, 100 ft below our altitude. We then received an RA to climb. The first officer initiated a climb as I continued to look for the target. I spotted 1 GA aircraft as the first officer complied with the 1500-1800 FPM climb RA. At our apex we were 400 ft above the target. As the target passed, we were able to discern 4 GA aircraft in formation. I advised ATC of our altitude deviation and asked him if he had seen the target. He initially stated that he had not and then said that he did see them after I had called. We descended and landed without incident.

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Original NASA ASRS Text

Title: NMAC. FLC OF A B727 CLB IN RESPONSE TO A TCASII RA. 4 GA ACFT IN FORMATION PASSED 400 FT BELOW DURING DSCNT ON A STAR ARR RTE.

Narrative: LOCATION: VKZ 018 DEG RADIAL S OF HEATT. AS WE DSNDED THROUGH 10800 FT ON THE HEATT ARR, WE RECEIVED A TA. I WENT TO THE 5 MI SCALE AND OBSERVED A TARGET AT APPROX 12:30 POS, 100 FT BELOW OUR ALT. WE THEN RECEIVED AN RA TO CLB. THE FO INITIATED A CLB AS I CONTINUED TO LOOK FOR THE TARGET. I SPOTTED 1 GA ACFT AS THE FO COMPLIED WITH THE 1500-1800 FPM CLB RA. AT OUR APEX WE WERE 400 FT ABOVE THE TARGET. AS THE TARGET PASSED, WE WERE ABLE TO DISCERN 4 GA ACFT IN FORMATION. I ADVISED ATC OF OUR ALTDEV AND ASKED HIM IF HE HAD SEEN THE TARGET. HE INITIALLY STATED THAT HE HAD NOT AND THEN SAID THAT HE DID SEE THEM AFTER I HAD CALLED. WE DSNDED AND LANDED WITHOUT INCIDENT.

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.