Narrative:

We were level at FL350 and in communication with merida center on 125.80. At 16 NM north of duslo intersection on UB753; we noticed traffic on the TCAS. Almost immediately; the traffic icon changed to amber and was climbing into our altitude. ATC had not issued any notice and we poised ourselves for corrective action while trying to identify the target visually as it was clear and VMC. The intruder aircraft was traveling from east to west. Upon receiving the TCAS RA; we responded per company procedure and climbed according to the TCAS direction. We reached 35;520 feet at which time we were alerted that we were clear of the conflicting aircraft. We then notified ATC and returned to our previously cleared altitude of FL350 and re-established the proper level of automation for the phase of flight.

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Original NASA ASRS Text

Title: B737 flight crew experiences a TCAS RA at FL350; 16 NM north of DUSLO Intersection on UB753. A climb is initiated in compliance with the RA and the event reported to Merida Center.

Narrative: We were level at FL350 and in communication with Merida Center on 125.80. At 16 NM north of DUSLO intersection on UB753; we noticed traffic on the TCAS. Almost immediately; the traffic icon changed to amber and was climbing into our altitude. ATC had not issued any notice and we poised ourselves for corrective action while trying to identify the target visually as it was clear and VMC. The intruder aircraft was traveling from east to west. Upon receiving the TCAS RA; we responded per Company procedure and climbed according to the TCAS direction. We reached 35;520 feet at which time we were alerted that we were clear of the conflicting aircraft. We then notified ATC and returned to our previously cleared altitude of FL350 and re-established the proper level of automation for the phase of flight.

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.