Narrative:

While working miami arrival, miami departure, a developmental climbed on air carrier X in front of, and through air carrier Y. Air carrier Y reacted with a TCASII climb. Incident was reported to supervisor. Fortunately, a TA had been issued prior to incident.

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Original NASA ASRS Text

Title: ACR Y NON ADHERENCE TO ATC CLRNC TCASII RA CLB HAD LTSS FROM ACR Y. PLTDEV.

Narrative: WHILE WORKING MIAMI ARR, MIAMI DEP, A DEVELOPMENTAL CLBED ON ACR X IN FRONT OF, AND THROUGH ACR Y. ACR Y REACTED WITH A TCASII CLB. INCIDENT WAS RPTED TO SUPVR. FORTUNATELY, A TA HAD BEEN ISSUED PRIOR TO 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.