Narrative:

Flight originated from sgj to jax. Initial clearance was to climb to 2000 ft, heading 310 degrees, which was complied with. Final altitude cleared to was 5000 ft. When I had what I thought was jax in sight, I told the approach controller 'airport in sight.' the airport that I was looking at, which from my position had the correct runway alignment, was not jax, but white houser field. We were given a descent to 3000 ft and informed of traffic below us at 2000 ft. We were cleared for a visual approach to runway 7 at jax. We then started a left turn and descended from 3000 ft to 2800 ft with traffic below in visual contact. I was asked by the controller what airport I had in sight. Before answering, the controller came back with a vector of 020 degrees and altitude of 2000 ft, followed by additional vectors to a visual approach to runway 7 at jax. Upon landing and contacting ground, I was asked to call the controller supervisor. He said lost separation had occurred and thought it would be considered a pilot deviation. I told him I was very sorry the situation had happened. Also, I told him of the wrong airport in sight initially, verifying jax airport, shortly after visual approach clearance received, visual approach clearance to runway 7 and previously called traffic in sight with visual separation maintained with no indication from controller of other aircraft climbing. Corrective action I should take in the future would be to never call airport in sight until absolutely verified with all means available.

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Original NASA ASRS Text

Title: WRONG ALT APCH CREATES A POTENTIAL CONFLICT FOR THE FLC OF A BE400 SW OF JAX, FL.

Narrative: FLT ORIGINATED FROM SGJ TO JAX. INITIAL CLRNC WAS TO CLB TO 2000 FT, HDG 310 DEGS, WHICH WAS COMPLIED WITH. FINAL ALT CLRED TO WAS 5000 FT. WHEN I HAD WHAT I THOUGHT WAS JAX IN SIGHT, I TOLD THE APCH CTLR 'ARPT IN SIGHT.' THE ARPT THAT I WAS LOOKING AT, WHICH FROM MY POS HAD THE CORRECT RWY ALIGNMENT, WAS NOT JAX, BUT WHITE HOUSER FIELD. WE WERE GIVEN A DSCNT TO 3000 FT AND INFORMED OF TFC BELOW US AT 2000 FT. WE WERE CLRED FOR A VISUAL APCH TO RWY 7 AT JAX. WE THEN STARTED A L TURN AND DSNDED FROM 3000 FT TO 2800 FT WITH TFC BELOW IN VISUAL CONTACT. I WAS ASKED BY THE CTLR WHAT ARPT I HAD IN SIGHT. BEFORE ANSWERING, THE CTLR CAME BACK WITH A VECTOR OF 020 DEGS AND ALT OF 2000 FT, FOLLOWED BY ADDITIONAL VECTORS TO A VISUAL APCH TO RWY 7 AT JAX. UPON LNDG AND CONTACTING GND, I WAS ASKED TO CALL THE CTLR SUPVR. HE SAID LOST SEPARATION HAD OCCURRED AND THOUGHT IT WOULD BE CONSIDERED A PLTDEV. I TOLD HIM I WAS VERY SORRY THE SIT HAD HAPPENED. ALSO, I TOLD HIM OF THE WRONG ARPT IN SIGHT INITIALLY, VERIFYING JAX ARPT, SHORTLY AFTER VISUAL APCH CLRNC RECEIVED, VISUAL APCH CLRNC TO RWY 7 AND PREVIOUSLY CALLED TFC IN SIGHT WITH VISUAL SEPARATION MAINTAINED WITH NO INDICATION FROM CTLR OF OTHER ACFT CLBING. CORRECTIVE ACTION I SHOULD TAKE IN THE FUTURE WOULD BE TO NEVER CALL ARPT IN SIGHT UNTIL ABSOLUTELY VERIFIED WITH ALL MEANS AVAILABLE.

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.