Narrative:

I was working the radar position at the seminole sector with scattered extreme precipitation surrounding the seminole VOR. An intruder appeared southeast of seminole indicating FL240. Seconds later; another intruder appeared east of my airspace indicating wbound flight at FL340. Within mins; more intruders appeared at various altitudes up to and including FL400. They all were with beacon codes and had history indicating direction of flight. I issued TA's to the planes I was working and issued vectors and/or altitude changes to avoid the intruders. I immediately advised my supervisor of the situation and approximately 10 mins later I was told there was a problem with the radar site and the intruders were not real.

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Original NASA ASRS Text

Title: ZJX CTLR DESCRIBED EVENT WHEN NUMEROUS TARGETS WERE OBSERVED AND ISSUED AS TFC; LATER ADVISED TARGETS WERE NOT REAL BUT A RADAR ANOMALY.

Narrative: I WAS WORKING THE RADAR POS AT THE SEMINOLE SECTOR WITH SCATTERED EXTREME PRECIP SURROUNDING THE SEMINOLE VOR. AN INTRUDER APPEARED SE OF SEMINOLE INDICATING FL240. SECONDS LATER; ANOTHER INTRUDER APPEARED E OF MY AIRSPACE INDICATING WBOUND FLT AT FL340. WITHIN MINS; MORE INTRUDERS APPEARED AT VARIOUS ALTS UP TO AND INCLUDING FL400. THEY ALL WERE WITH BEACON CODES AND HAD HISTORY INDICATING DIRECTION OF FLT. I ISSUED TA'S TO THE PLANES I WAS WORKING AND ISSUED VECTORS AND/OR ALT CHANGES TO AVOID THE INTRUDERS. I IMMEDIATELY ADVISED MY SUPVR OF THE SITUATION AND APPROX 10 MINS LATER I WAS TOLD THERE WAS A PROB WITH THE RADAR SITE AND THE INTRUDERS WERE NOT REAL.

Data retrieved from NASA's ASRS site as of May 2009 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.