Narrative:

Working R34; about 16-20 aircraft in sector. Beacon code X pops up on scope near hanksville; ut; at FL380. First thought was target jump or ghost target. Did flight plan readout on code. Flight plan for air carrier X brought up route; aircraft still 100 mi prior to entering my airspace. Confirmed with traffic in sector aircraft was real. (Contrail in correct area moving west.) tracked aircraft for 80 mi ground speed about 550-600 KTS. Track was heading towards natcf ranges; and disappeared about 25 mi prior to natcf boundary.

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Original NASA ASRS Text

Title: ZLC CTLR DESCRIBED INCIDENT WHEN ERRONEOUS DATA BLOCK INFO WAS DISPLAYED ON HIS OR HER POS.

Narrative: WORKING R34; ABOUT 16-20 ACFT IN SECTOR. BEACON CODE X POPS UP ON SCOPE NEAR HANKSVILLE; UT; AT FL380. FIRST THOUGHT WAS TARGET JUMP OR GHOST TARGET. DID FLT PLAN READOUT ON CODE. FLT PLAN FOR ACR X BROUGHT UP RTE; ACFT STILL 100 MI PRIOR TO ENTERING MY AIRSPACE. CONFIRMED WITH TFC IN SECTOR ACFT WAS REAL. (CONTRAIL IN CORRECT AREA MOVING W.) TRACKED ACFT FOR 80 MI GND SPD ABOUT 550-600 KTS. TRACK WAS HEADING TOWARDS NATCF RANGES; AND DISAPPEARED ABOUT 25 MI PRIOR TO NATCF BOUNDARY.

Data retrieved from NASA's ASRS site as of January 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.