Near midair collision between commuter and small aircraft Y over top VOR.

Attributes
ACN	144393
Time
Date	199004
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : top airport : mci
State Reference	KS
Altitude	msl bound lower : 5000 msl bound upper : 5500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zkc
Operator	common carrier : air carrier
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent other
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 240 flight time total : 1450 flight time type : 580
ASRS Report	144393
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 400 vertical : 150
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

We had received a clearance to cross 10 east of top at 5000. We were descending out of 9000'. The captain was in the process of getting ATIS when at my 12:30 position and slightly below me I saw a single engine, small aircraft Y headed southwest. I took evasive action with a turn to the left and a stop of the descent. We then informed center of the conflict but they showed no radar target. The captain contacted the topeka billard tower and they were unaware of any traffic in the area.

Original NASA ASRS Text

Title: NMAC BETWEEN COMMUTER AND SMA Y OVER TOP VOR.

Narrative: WE HAD RECEIVED A CLRNC TO CROSS 10 E OF TOP AT 5000. WE WERE DSNDING OUT OF 9000'. THE CAPT WAS IN THE PROCESS OF GETTING ATIS WHEN AT MY 12:30 POS AND SLIGHTLY BELOW ME I SAW A SINGLE ENG, SMA Y HEADED SW. I TOOK EVASIVE ACTION WITH A TURN TO THE L AND A STOP OF THE DSNT. WE THEN INFORMED CTR OF THE CONFLICT BUT THEY SHOWED NO RADAR TARGET. THE CAPT CONTACTED THE TOPEKA BILLARD TWR AND THEY WERE UNAWARE OF ANY TFC IN THE AREA.

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.