Narrative:

ZDV was on back up radar (darc) for about 2 hours. Shortly after rdp returned, I relieved a controller at ekr high sector. Air carrier X was near ekr at FL310 but was not identified or tagged. Air carrier X penetrated slc sector 30 by about 60 miles without a handoff. Since there is not a trace of a full or limited data block, ATC/aircraft equipment is suspect.

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Original NASA ASRS Text

Title: UNCOORD PENETRATION OF AIRSPACE. OPERATIONAL DEVIATION.

Narrative: ZDV WAS ON BACK UP RADAR (DARC) FOR ABOUT 2 HOURS. SHORTLY AFTER RDP RETURNED, I RELIEVED A CTLR AT EKR HIGH SECTOR. ACR X WAS NEAR EKR AT FL310 BUT WAS NOT IDENTIFIED OR TAGGED. ACR X PENETRATED SLC SECTOR 30 BY ABOUT 60 MILES WITHOUT A HANDOFF. SINCE THERE IS NOT A TRACE OF A FULL OR LIMITED DATA BLOCK, ATC/ACFT EQUIPMENT IS SUSPECT.

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