While on approach 'IMC' aircraft received a climb RA from TCASII.

Attributes
ACN	491867
Time
Date	200011
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sgj.airport
Altitude	msl single value : 2000
Environment
Flight Conditions	IMC
Weather Elements	Rain Fog
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : jax.tracon
Operator	general aviation : corporate
Make Model Name	Citation X
Operating Under FAR Part	Part 135
Navigation In Use	other other Other
Flight Phase	descent : approach
Route In Use	approach other arrival : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise : level
Flight Plan	VFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : atp
Experience	flight time last 90 days : 60 flight time total : 11400 flight time type : 400
ASRS Report	491867
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne critical inflight encounter : vfr in imc inflight encounter : weather non adherence : published procedure non adherence : clearance non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	flight crew : took evasive action
Supplementary
Problem Areas	Aircraft Weather
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

I was being vectored to the GPS runway 31 to sgj when jax and I both saw a target appear in my vicinity at 2000 ft.I had to climb in answer to the TCASII RA. The target was so close that he was superimposed with my aircraft symbol. The WX was solid IFR in rain and cloud. The other plane was unknown to jax. Therefore they were flying VFR in solid IMC conditions. This is my third near midair collision this year at this airport.

Original NASA ASRS Text

Title: WHILE ON APCH 'IMC' ACFT RECEIVED A CLB RA FROM TCASII.

Narrative: I WAS BEING VECTORED TO THE GPS RWY 31 TO SGJ WHEN JAX AND I BOTH SAW A TARGET APPEAR IN MY VICINITY AT 2000 FT.I HAD TO CLB IN ANSWER TO THE TCASII RA. THE TARGET WAS SO CLOSE THAT HE WAS SUPERIMPOSED WITH MY ACFT SYMBOL. THE WX WAS SOLID IFR IN RAIN AND CLOUD. THE OTHER PLANE WAS UNKNOWN TO JAX. THEREFORE THEY WERE FLYING VFR IN SOLID IMC CONDITIONS. THIS IS MY THIRD NMAC THIS YEAR AT THIS ARPT.

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.