Change of clearance understanding between controllers.

Attributes
ACN	119939
Time
Date	198908
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : jot
State Reference	IL
Altitude	msl bound lower : 22500 msl bound upper : 23000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zau
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 14000 flight time type : 10000
ASRS Report	119939
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Intra Facility Coordination Failure Inter Facility Coordination Failure

Narrative:

This situation is more common as time goes by and involves a clearance to fly a certain clearance given by one controller and finding yourself switched to another controller with a different understanding of the clearance given. Inbound to jot VOR we were given a descent from FL270 to 15,000. Clearance was then to turn to 360 degree, direct jot out of FL230. This was given on 125.05. A change to frequency 135.15 and controller asked where we were going. I answered, direct to jot. We were turned to 330 degree and told direct to jot out of FL200 and that that was our original clearance. I replied that it was not our original clearance but I complied with the direct jot out of FL200 as he understood it. Similar occurrences have happened involving these same sectors of chicago center in the past.

Original NASA ASRS Text

Title: CHANGE OF CLRNC UNDERSTANDING BETWEEN CTLRS.

Narrative: THIS SITUATION IS MORE COMMON AS TIME GOES BY AND INVOLVES A CLRNC TO FLY A CERTAIN CLRNC GIVEN BY ONE CTLR AND FINDING YOURSELF SWITCHED TO ANOTHER CTLR WITH A DIFFERENT UNDERSTANDING OF THE CLRNC GIVEN. INBND TO JOT VOR WE WERE GIVEN A DSCNT FROM FL270 TO 15,000. CLRNC WAS THEN TO TURN TO 360 DEG, DIRECT JOT OUT OF FL230. THIS WAS GIVEN ON 125.05. A CHANGE TO FREQ 135.15 AND CTLR ASKED WHERE WE WERE GOING. I ANSWERED, DIRECT TO JOT. WE WERE TURNED TO 330 DEG AND TOLD DIRECT TO JOT OUT OF FL200 AND THAT THAT WAS OUR ORIGINAL CLRNC. I REPLIED THAT IT WAS NOT OUR ORIGINAL CLRNC BUT I COMPLIED WITH THE DIRECT JOT OUT OF FL200 AS HE UNDERSTOOD IT. SIMILAR OCCURRENCES HAVE HAPPENED INVOLVING THESE SAME SECTORS OF CHICAGO CENTER IN THE PAST.

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.