P31 approach controller experienced TCASII RA with air carrier inbound to pns.

Attributes
ACN	587822
Time
Date	200307
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : nun.vor
State Reference	FL
Altitude	msl single value : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : p31.tracon
Operator	common carrier : air carrier other
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	descent : approach descent : intermediate altitude
Route In Use	arrival : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : p31.tracon
Operator	other
Make Model Name	Military Trainer
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : departure controller : approach
Qualification	controller : radar
Experience	controller radar : 20
ASRS Report	587822
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe
Independent Detector	aircraft equipment : tcas other controllera
Resolutory Action	none taken : anomaly accepted
Miss Distance	horizontal : 18000 vertical : 500
Supplementary
Problem Areas	Aircraft FAA Flight Crew Human Performance ATC Human Performance
Primary Problem	Ambiguous

Narrative:

E145 inbound to pensacola, assigned 5000 ft descended in response to a VFR T34 at 5500 ft and flew in close proximity to an IFR helicopter at 4000 ft wbound.

Original NASA ASRS Text

Title: P31 APCH CTLR EXPERIENCED TCASII RA WITH ACR INBOUND TO PNS.

Narrative: E145 INBOUND TO PENSACOLA, ASSIGNED 5000 FT DSNDED IN RESPONSE TO A VFR T34 AT 5500 FT AND FLEW IN CLOSE PROX TO AN IFR HELI AT 4000 FT WBOUND.

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.