Narrative:

On jun/xx/96 we approached fwa at 25000 ft MSL. After fwa we were cleared V220 to lfd cruxx 2 arrival to yip. 15 NM south of fwa we were cleared to cross 10 NM south of fwa 15 24000 ft MSL. We initiated the descent and leveled off at 24000 ft, 10.2 NM south of fwa VOR. In the meantime ZAU questioned our crossing altitude and said his radar showed us at 25000 ft 8 NM south of fwa VOR. I replied that we crossed 10 NM south at fwa at 24000 ft. We were then handed off to detroit approach. DME inaccuracy could have been a factor in our crossing restr.

Related reports:

Google
 

Original NASA ASRS Text

Title: ALTDEV. XING RESTR NOT MET. RPTR STATES THAT THEY WERE AT THE CORRECT ALT, BUT CTR DISAGREED. RPTR SAYS DME INACCURACY COULD HAVE BEEN THE CAUSE.

Narrative: ON JUN/XX/96 WE APCHED FWA AT 25000 FT MSL. AFTER FWA WE WERE CLRED V220 TO LFD CRUXX 2 ARR TO YIP. 15 NM S OF FWA WE WERE CLRED TO CROSS 10 NM S OF FWA 15 24000 FT MSL. WE INITIATED THE DSCNT AND LEVELED OFF AT 24000 FT, 10.2 NM S OF FWA VOR. IN THE MEANTIME ZAU QUESTIONED OUR XING ALT AND SAID HIS RADAR SHOWED US AT 25000 FT 8 NM S OF FWA VOR. I REPLIED THAT WE CROSSED 10 NM S AT FWA AT 24000 FT. WE WERE THEN HANDED OFF TO DETROIT APCH. DME INACCURACY COULD HAVE BEEN A FACTOR IN OUR XING RESTR.

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.