Narrative:

We were climbing out on the latis departure from rionegro airport. ATC cleared us to 13000'. As we began to climb we received a TCAS RA to descend. We complied with the TCAS and continued to descend to 11000'. We told ATC that we were complying with an RA. During the procedure we were IMC until the very end. The other traffic was descending while we were descending 200' below it. Toward the end I saw that the other aircraft was a turbo-prop. After thinking about the incident; either the other aircraft didn't have a TCAS system or he wasn't using it. When we were clear of traffic; we told ATC and climbed back to 13000'

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Original NASA ASRS Text

Title: Air Carrier Pilot reported a TCAS RA and NMAC while climbing out in IMC from Rionegro Airport.

Narrative: We were climbing out on the Latis departure from Rionegro airport. ATC cleared us to 13000'. As we began to climb we received a TCAS RA to descend. We complied with the TCAS and continued to descend to 11000'. We told ATC that we were complying with an RA. During the procedure we were IMC until the very end. The other traffic was descending while we were descending 200' below it. Toward the end I saw that the other aircraft was a turbo-prop. After thinking about the incident; either the other aircraft didn't have a TCAS system or he wasn't using it. When we were clear of traffic; we told ATC and climbed back to 13000'

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.