An SF340 flight descending into mynn; cleared to descend to 8;000 feet; narrowly avoided an near mid...

Attributes
ACN	1204001
Time
Date	201409
Local Time Of Day	0601-1200
Place
Locale Reference	MYNN.TRACON
State Reference	FO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	SF 340B
Operating Under FAR Part	Part 135
Flight Phase	Descent
Route In Use	Vectors Direct
Flight Plan	IFR
Aircraft 2
Make Model Name	Cessna Single Turboprop Undifferentiated or Other Model
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Commercial Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 1950 Flight Crew Type 1350
Events
Anomaly	Conflict Airborne Conflict
Miss Distance	Horizontal 0 Vertical 500

Narrative:

Handed off from miami center to nassau approach overhead rajay intersection enroute to mynn airport. NAS approach cleared our flight to descend from 11;000 feet to 2000 feet and proceed direct to munie intersection. My first officer read back the clearance and clarified the fix; and as I initiated the descent I looked up to see a cessna caravan approaching; opposite direction. I stopped the descent and returned to 11;000' as the caravan passed 500' directly below. We advised nassau approach that we had deviated to avoid a collision and were advised that they '...don't know anything about that aircraft. We aren't talking to them.'in this situation; after receiving a clearance to descend with no traffic advisory issued; it was left to eyesight and reaction time to avoid a collision; especially at a closure rate near 400 knots. This being the third RA that I've experienced in nassau's airspace--almost always just inside of rajay--I feel that it is an issue that needs to be addressed.

Original NASA ASRS Text

Title: An SF340 flight descending into MYNN; cleared to descend to 8;000 feet; narrowly avoided an NMAC with an opposite direction Cessna Caravan. Approach advised they were not talking to them.

Narrative: Handed off from Miami Center to Nassau Approach overhead RAJAY intersection enroute to MYNN airport. NAS Approach cleared our flight to descend from 11;000 feet to 2000 feet and proceed direct to MUNIE intersection. My FO read back the clearance and clarified the fix; and as I initiated the descent I looked up to see a Cessna Caravan approaching; opposite direction. I stopped the descent and returned to 11;000' as the Caravan passed 500' directly below. We advised Nassau approach that we had deviated to avoid a collision and were advised that they '...don't know anything about that aircraft. We aren't talking to them.'In this situation; after receiving a clearance to descend with no traffic advisory issued; it was left to eyesight and reaction time to avoid a collision; especially at a closure rate near 400 knots. This being the third RA that I've experienced in Nassau's airspace--almost always just inside of RAJAY--I feel that it is an issue that needs to be addressed.

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.

An SF340 flight descending into mynn; cleared to descend to 8;000 feet; narrowly avoided an near midair collision with an opposite direction cessna caravan. Approach advised they were not talking to them.