ARTCC radar controller climbed an air carrier ATR72 through the altitude of a BE90 with less than standard separation. Controller attempted to vector both aircraft for separation, but the BE90 didn't comply with new clearance.

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Attributes
ACN	385034
Time
Date	199711
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : elx
State Reference	MI
Altitude	msl bound lower : 17000 msl bound upper : 17000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zau tower : dfw
Operator	common carrier : air carrier
Make Model Name	ATR 72
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
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
ASRS Report	385034
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 27000 vertical : 700
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

I was working combined sectors and frequencys. Aircraft X was level 15000 ft, aircraft Y level 17000 ft. Air carrier X was requesting FL190. After observing all possible jet traffic vacating FL190, I climbed aircraft X. By the time I was alerted to potential error, I was unable to stop aircraft X at 16000 ft. I tried to effect separation by vectoring aircraft from each other. However, aircraft Y failed to read back first attempt, and second clearance was not complied with by pilot of aircraft Y. Once the error had occurred, I reclred both aircraft onto flight plan rtes.

Original NASA ASRS Text

Title: ARTCC RADAR CTLR CLBED AN ACR ATR72 THROUGH THE ALT OF A BE90 WITH LTSS. CTLR ATTEMPTED TO VECTOR BOTH ACFT FOR SEPARATION, BUT THE BE90 DIDN'T COMPLY WITH NEW CLRNC.

Narrative: I WAS WORKING COMBINED SECTORS AND FREQS. ACFT X WAS LEVEL 15000 FT, ACFT Y LEVEL 17000 FT. ACR X WAS REQUESTING FL190. AFTER OBSERVING ALL POSSIBLE JET TFC VACATING FL190, I CLBED ACFT X. BY THE TIME I WAS ALERTED TO POTENTIAL ERROR, I WAS UNABLE TO STOP ACFT X AT 16000 FT. I TRIED TO EFFECT SEPARATION BY VECTORING ACFT FROM EACH OTHER. HOWEVER, ACFT Y FAILED TO READ BACK FIRST ATTEMPT, AND SECOND CLRNC WAS NOT COMPLIED WITH BY PLT OF ACFT Y. ONCE THE ERROR HAD OCCURRED, I RECLRED BOTH ACFT ONTO FLT PLAN RTES.

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.