Narrative:

Inbound on knox arrival to ord we were in and out of base of clouds bordering a line of thunderstorms. We had just deviated around a thunderstorm and advised chicago center we needed to slow down from 310 KTS assigned due to turbulence. Chicago told us to increase to 300 KTS when possible and we rogered that. When turned over to approach he asked us our speed which was still 250 KTS in moderate turbulence and told us next time we wanted to slow to tell him. We had not sped back up and had the impression we had done something wrong. No further problems were encountered.

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Original NASA ASRS Text

Title: TRACON DOES NOT GET THE INFO THAT THE AIRPLANE WAS GOING TO SLOW FOR TURB AND WOULD RETURN TO 300 KTS WHEN ABLE.

Narrative: INBOUND ON KNOX ARR TO ORD WE WERE IN AND OUT OF BASE OF CLOUDS BORDERING A LINE OF TSTMS. WE HAD JUST DEVIATED AROUND A TSTM AND ADVISED CHICAGO CTR WE NEEDED TO SLOW DOWN FROM 310 KTS ASSIGNED DUE TO TURB. CHICAGO TOLD US TO INCREASE TO 300 KTS WHEN POSSIBLE AND WE ROGERED THAT. WHEN TURNED OVER TO APCH HE ASKED US OUR SPD WHICH WAS STILL 250 KTS IN MODERATE TURB AND TOLD US NEXT TIME WE WANTED TO SLOW TO TELL HIM. WE HAD NOT SPED BACK UP AND HAD THE IMPRESSION WE HAD DONE SOMETHING WRONG. NO FURTHER PROBS WERE ENCOUNTERED.

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.