Air carrier leaving holding pattern in descent. Stopped, climbed, turned to avoid second air carrier...

Attributes
ACN	155783
Time
Date	199009
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : gep
State Reference	MN
Altitude	msl bound lower : 18000 msl bound upper : 19000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zmp tower : cle
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	descent other
Route In Use	arrival star : star
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Navigation In Use	Other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 240 flight time total : 11920 flight time type : 7300
ASRS Report	155783
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	non adherence : required legal separation
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 1200 vertical : 500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

While outbnd in the published holding pattern at doyle, ZMP issued us the following clearance: continue the turnaround and intercept the doyle arrival, descend and maintain 10000', cross exact intersection at or below 15000'. About 1 min later center told us to stop our descent at FL190. We were already passing FL180 at the time. We notified center that we had to climb back up to FL190. Center told us to do so. Then center told us to turn left to a heading of 180 degrees. We were passing approximately north in our turn. While turning to heading 180 degrees we saw a company large transport that our controller was maneuvering us to avoid. We were able to remain clear of the large transport visually and notified center. The controller stated that he had turned us too soon and didn't realize that we were turning sharper than he had anticipated. We were making a standard rate turn with 30 degrees of bank. We felt that the controller noticed his mistake and took effective action to avoid a possible collision. The flight proceeded to msp west/O further incident.

Original NASA ASRS Text

Title: ACR LEAVING HOLDING PATTERN IN DESCENT. STOPPED, CLIMBED, TURNED TO AVOID SECOND ACR.

Narrative: WHILE OUTBND IN THE PUBLISHED HOLDING PATTERN AT DOYLE, ZMP ISSUED US THE FOLLOWING CLRNC: CONTINUE THE TURNAROUND AND INTERCEPT THE DOYLE ARR, DSND AND MAINTAIN 10000', CROSS EXACT INTXN AT OR BELOW 15000'. ABOUT 1 MIN LATER CENTER TOLD US TO STOP OUR DSNT AT FL190. WE WERE ALREADY PASSING FL180 AT THE TIME. WE NOTIFIED CENTER THAT WE HAD TO CLB BACK UP TO FL190. CENTER TOLD US TO DO SO. THEN CENTER TOLD US TO TURN LEFT TO A HDG OF 180 DEGS. WE WERE PASSING APPROX N IN OUR TURN. WHILE TURNING TO HDG 180 DEGS WE SAW A COMPANY LGT THAT OUR CTLR WAS MANEUVERING US TO AVOID. WE WERE ABLE TO REMAIN CLR OF THE LGT VISUALLY AND NOTIFIED CENTER. THE CTLR STATED THAT HE HAD TURNED US TOO SOON AND DIDN'T REALIZE THAT WE WERE TURNING SHARPER THAN HE HAD ANTICIPATED. WE WERE MAKING A STANDARD RATE TURN WITH 30 DEGS OF BANK. WE FELT THAT THE CTLR NOTICED HIS MISTAKE AND TOOK EFFECTIVE ACTION TO AVOID A POSSIBLE COLLISION. THE FLT PROCEEDED TO MSP W/O FURTHER INCIDENT.

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.