Rsw and ZMA controllers described a loss of separation event when coordination between the two facil...

Attributes
ACN	922500
Time
Date	201012
Local Time Of Day	1801-2400
Place
Locale Reference	RSW.Airport
State Reference	FL
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Climb
Route In Use	Direct SID CSHEL4
Flight Plan	IFR
Aircraft 2
Make Model Name	Aero Commander 695
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Vectors
Flight Plan	IFR
Person 1
Function	Approach Departure
Qualification	Air Traffic Control Fully Certified
Person 2
Function	Supervisor / CIC Enroute
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict

Narrative:

Aircraft X was issued a turn direct cshel as per the CSHEL4 departure SID and given a climb to 080 due to crossing traffic at 090; normally the CSHEL4 departure will be given a climb to 100 then handed of to the lal hi sector of ZMA. Aircraft X was incorrectly given a frequency change to lal hi. Immediately after the mistake was made coordination was attempted with the receiving sector who gave their initials and got off of the land line before effective coordination could be completed. The lal hi controller then climbed aircraft X through the altitude of the converging traffic. The affected traffic was then given an altitude and heading to avoid a collision. Recommendation; ensure proper land line communications are preformed.

Original NASA ASRS Text

Title: RSW and ZMA Controllers described a loss of separation event when coordination between the two facilities regarding an altitude assignment was confused leading to the error.

Narrative: Aircraft X was issued a turn direct CSHEL as per the CSHEL4 departure SID and given a climb to 080 due to crossing traffic at 090; normally the CSHEL4 departure will be given a climb to 100 then handed of to the LAL HI sector of ZMA. Aircraft X was incorrectly given a frequency change to LAL HI. Immediately after the mistake was made coordination was attempted with the receiving sector who gave their initials and got off of the land line before effective coordination could be completed. The LAL HI Controller then climbed Aircraft X through the altitude of the converging traffic. The affected traffic was then given an altitude and heading to avoid a collision. Recommendation; ensure proper land line communications are preformed.

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.

Rsw and ZMA controllers described a loss of separation event when coordination between the two facilities regarding an altitude assignment was confused leading to the error.