Air carrier medium large transport issued clearance to wrong altitude.

Attributes
ACN	89164
Time
Date	198806
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : cvg
State Reference	OH
Altitude	msl bound lower : 10000 msl bound upper : 10700
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute airway : day
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain observation : company check pilot oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 190 flight time total : 12000 flight time type : 820
ASRS Report	89164
Person 2
Affiliation	company : air carrier
Function	flight crew : captain instruction : trainee
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 11500 flight time type : 13
ASRS Report	89162
Events
Anomaly	altitude deviation : overshoot other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation

Narrative:

At 6000', while trying to deviate around local heavy WX, switched over to dayton approach on a flight from cvg-ind. Dayton cleared us to 11000'. I, as captain set 11000' in altitude alert window and acknowledged clearance. At 10600' day told us altitude clearance was 10000'. We immediately descended to 10000'. I talked on the telephone upon landing at ind. I was told it was a mix up and not to worry. Let me also say that day was extremely busy since many flts were forced to deviate into their airspace. With all the confusion it's amazing more problems don't occur. Day assured me that no other aircraft were close to our position and thus, no conflict.

Original NASA ASRS Text

Title: ACR MLG ISSUED CLRNC TO WRONG ALT.

Narrative: AT 6000', WHILE TRYING TO DEVIATE AROUND LCL HEAVY WX, SWITCHED OVER TO DAYTON APCH ON A FLT FROM CVG-IND. DAYTON CLRED US TO 11000'. I, AS CAPT SET 11000' IN ALT ALERT WINDOW AND ACKNOWLEDGED CLRNC. AT 10600' DAY TOLD US ALT CLRNC WAS 10000'. WE IMMEDIATELY DSNDED TO 10000'. I TALKED ON THE TELEPHONE UPON LNDG AT IND. I WAS TOLD IT WAS A MIX UP AND NOT TO WORRY. LET ME ALSO SAY THAT DAY WAS EXTREMELY BUSY SINCE MANY FLTS WERE FORCED TO DEVIATE INTO THEIR AIRSPACE. WITH ALL THE CONFUSION IT'S AMAZING MORE PROBS DON'T OCCUR. DAY ASSURED ME THAT NO OTHER ACFT WERE CLOSE TO OUR POS AND THUS, NO CONFLICT.

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.