<< >> NASA ASRS Report 438589, May 1999

A fokker 100 flight crew began a descending turn and were given a turn in the opposite direction with a new altitude by ZAU.

Attributes
ACN	438589
Time
Date	199905
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	intersection : halie
State Reference	IL
Altitude	msl bound lower : 14000 msl bound upper : 18000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zau.artcc
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	descent : approach
Route In Use	arrival star : kokomo 1
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	438589
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : commercial
ASRS Report	438590
Events
Anomaly	other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

We were on the kokomo 1 arrival into ord and were given holding instructions at halie as published. Approximately 1 mi prior to entering the hold we were told to turn to a heading of 130 degrees and descend to 14000 ft. As no direction of turn was given, we started a r-hand turn to 130 degrees. Approximately 30 degrees into the turn I informed ZAU that we were in a r-hand turn to 130 degrees. He stated that we were to reverse our turn to the left and stop our descent at FL180. We complied with his request and no further comment was made.

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Original NASA ASRS Text

Title: A FOKKER 100 FLC BEGAN A DSNDING TURN AND WERE GIVEN A TURN IN THE OPPOSITE DIRECTION WITH A NEW ALT BY ZAU.

Narrative: WE WERE ON THE KOKOMO 1 ARR INTO ORD AND WERE GIVEN HOLDING INSTRUCTIONS AT HALIE AS PUBLISHED. APPROX 1 MI PRIOR TO ENTERING THE HOLD WE WERE TOLD TO TURN TO A HDG OF 130 DEGS AND DSND TO 14000 FT. AS NO DIRECTION OF TURN WAS GIVEN, WE STARTED A R-HAND TURN TO 130 DEGS. APPROX 30 DEGS INTO THE TURN I INFORMED ZAU THAT WE WERE IN A R-HAND TURN TO 130 DEGS. HE STATED THAT WE WERE TO REVERSE OUR TURN TO THE L AND STOP OUR DSCNT AT FL180. WE COMPLIED WITH HIS REQUEST AND NO FURTHER COMMENT WAS MADE.

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.