Narrative:

Aircraft X was on a K fix routing and I issued an alternate K fix for traffic. It took about 45 seconds of trying to understand and read back the clearance to get it right and then 30 plus seconds later aircraft X advised me that that fix was not in his database. I then issued a turn and proceeded to get separation. The fixes should be thrown out; they are unsafe and confusing.

Google
 

Original NASA ASRS Text

Title: ZMP Enroute Controller reported difficulty in issuing a revised 'K' fix. When coordination was completed; the aircraft did not have the fix in the database.

Narrative: Aircraft X was on a K fix routing and I issued an alternate K fix for traffic. It took about 45 seconds of trying to understand and read back the clearance to get it right and then 30 plus seconds later Aircraft X advised me that that fix was not in his database. I then issued a turn and proceeded to get separation. The fixes should be thrown out; they are unsafe and confusing.

Data retrieved from NASA's ASRS site as of April 2012 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.