Narrative:

Aircraft X was level at 8;000 ft over the jingl intersection on the JINGL1 arrival for fll. Aircraft Y was level at FL190 over the wlace intersection on the WLACE1 arrival for pbi. I told aircraft X to contact mia approach 133.77. Aircraft Y took aircraft X's communications transfer and checked on mia approach's frequency level at FL190 with the pbi ATIS. The mia approach controller told aircraft X to fly heading 120 degrees and join the localizer 9L and to descend and maintain 4;000 ft. Aircraft Y again took aircraft X's clearance and began a descent. Aircraft Y; who was near fort myers; descended through a GA aircraft at FL180; through sector 67 (lakeland low); nearly through fort myers approach. And nearly into another GA target at 8;000 ft before the pilot could be reached on mia approach's frequency and was stopped at 9;000 ft.

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Original NASA ASRS Text

Title: ZMA Controller described loss of separation and airspace incursion event when an air carrier accepted frequency change and ATC descent instructions for a company aircraft.

Narrative: Aircraft X was level at 8;000 FT over the JINGL Intersection on the JINGL1 arrival for FLL. Aircraft Y was level at FL190 over the WLACE Intersection on the WLACE1 arrival for PBI. I told Aircraft X to contact MIA approach 133.77. Aircraft Y took Aircraft X's communications transfer and checked on MIA Approach's frequency level at FL190 with the PBI ATIS. The MIA Approach Controller told Aircraft X to fly heading 120 degrees and join the LOC 9L and to descend and maintain 4;000 FT. Aircraft Y again took Aircraft X's clearance and began a descent. Aircraft Y; who was near Fort Myers; descended through a GA aircraft at FL180; through Sector 67 (Lakeland Low); nearly through Fort Myers Approach. And nearly into another GA target at 8;000 FT before the pilot could be reached on MIA Approach's frequency and was stopped at 9;000 FT.

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.