Narrative:

Aircraft was handed off to point mugu approach. When point mugu took automated handoff, a '6' was shown as the target symbol (which is normal). About 1 min later, the '6' became a 'C,' indicating ZLA had the handoff. There had been no handoff to ZLA and no reason for a 'C' to appear as the target symbol. This confused me, and required extensive coordination with point mugu and ZLA.

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Original NASA ASRS Text

Title: SCT CTLR EFFECTS HDOF TO NTD, THEN OBSERVES THE ACFT DATA BLOCK CHANGE TO A ZLA TRACKING SYMBOL AND INVESTIGATES.

Narrative: ACFT WAS HANDED OFF TO POINT MUGU APCH. WHEN POINT MUGU TOOK AUTOMATED HDOF, A '6' WAS SHOWN AS THE TARGET SYMBOL (WHICH IS NORMAL). ABOUT 1 MIN LATER, THE '6' BECAME A 'C,' INDICATING ZLA HAD THE HDOF. THERE HAD BEEN NO HDOF TO ZLA AND NO REASON FOR A 'C' TO APPEAR AS THE TARGET SYMBOL. THIS CONFUSED ME, AND REQUIRED EXTENSIVE COORD WITH POINT MUGU AND ZLA.

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.