<< >> NASA ASRS Report 404117, June 1998

ZMP controller receives handoff from msp approach on aircraft X. On initial contact, ZMP controller issues higher altitude, at pilot's request. Msp forgets to point out aircraft Y above aircraft X resulting in an operational error.

Attributes
ACN	404117
Time
Date	199806
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : rst
State Reference	MN
Altitude	msl bound lower : 8000 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zmp tracon : msp
Operator	general aviation : corporate
Make Model Name	Turbo Commander 690C
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	King Air C90 E90
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 9
ASRS Report	404117
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	none taken : unable
Consequence	Other
Miss Distance	horizontal : 27000 vertical : 400
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Aircraft X checked on my frequency at 8000 ft. He asked for higher because he was entering the tops. I climbed aircraft X and the alert went off. If msp approach would've pointed out aircraft X to sector 6 or aircraft Y to my sector as per 7110.65, this error would not have occurred. Also, the controller called the sector 7 d-side (my d-side) to tell him that aircraft X was stopped at 8000 ft referenced an aircraft Z which we later were told by the supervisor at msp approach, that the approach controller meant to reference aircraft Y.

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Original NASA ASRS Text

Title: ZMP CTLR RECEIVES HDOF FROM MSP APCH ON ACFT X. ON INITIAL CONTACT, ZMP CTLR ISSUES HIGHER ALT, AT PLT'S REQUEST. MSP FORGETS TO POINT OUT ACFT Y ABOVE ACFT X RESULTING IN AN OPERROR.

Narrative: ACFT X CHKED ON MY FREQ AT 8000 FT. HE ASKED FOR HIGHER BECAUSE HE WAS ENTERING THE TOPS. I CLBED ACFT X AND THE ALERT WENT OFF. IF MSP APCH WOULD'VE POINTED OUT ACFT X TO SECTOR 6 OR ACFT Y TO MY SECTOR AS PER 7110.65, THIS ERROR WOULD NOT HAVE OCCURRED. ALSO, THE CTLR CALLED THE SECTOR 7 D-SIDE (MY D-SIDE) TO TELL HIM THAT ACFT X WAS STOPPED AT 8000 FT REFED AN ACFT Z WHICH WE LATER WERE TOLD BY THE SUPVR AT MSP APCH, THAT THE APCH CTLR MEANT TO REF ACFT Y.

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.