Narrative:

We didn't really have problems on this flight with missed/confused clrncs, but going from new york area to detroit, we are flight planned over elm (elmira) VOR and later on, over the yqo (aylmer) VOR. It is always difficult to distinguish between the names of these two vors over the radio, and I believe a real possibility for confusion exists.

Google
 

Original NASA ASRS Text

Title: SIMILAR SOUNDING VOR NAMES. AYLER AND ELMIRA.

Narrative: WE DIDN'T REALLY HAVE PROBLEMS ON THIS FLT WITH MISSED/CONFUSED CLRNCS, BUT GOING FROM NEW YORK AREA TO DETROIT, WE ARE FLT PLANNED OVER ELM (ELMIRA) VOR AND LATER ON, OVER THE YQO (AYLMER) VOR. IT IS ALWAYS DIFFICULT TO DISTINGUISH BETWEEN THE NAMES OF THESE TWO VORS OVER THE RADIO, AND I BELIEVE A REAL POSSIBILITY FOR CONFUSION EXISTS.

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.