Captain of medium large transport at 10600 saw small aircraft aircraft pass 100 ft below and right.

Attributes
ACN	195866
Time
Date	199112
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : okc
State Reference	OK
Altitude	msl bound lower : 10500 msl bound upper : 10600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw tracon : okc
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other descent other
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Operator	other
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : instrument pilot : atp
Experience	flight time last 90 days : 250 flight time total : 12000 flight time type : 4000
ASRS Report	195866
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 100 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Cleared by ft worth center to descend at pilot's discretion to 10000 ft en route to okc. Spotted light aircraft at 10500 ft on VFR flight plan when we were passing 10600 ft. Small aircraft was only a few hundred yards in front of us and passed beneath our right wing before I could respond in any way. Copilot flying never saw the conflict. Concurrent with spotting the small airplane, ZFW called unknown traffic at our 12 O'clock at 1/2 mi and switched us to okc approach. I said nothing to the controller about the near miss, but did get a phone number. Via the phone call to center from okc I learned of the small plane not being under IFR control.

Original NASA ASRS Text

Title: CAPT OF MLG AT 10600 SAW SMA ACFT PASS 100 FT BELOW AND R.

Narrative: CLRED BY FT WORTH CENTER TO DSND AT PLT'S DISCRETION TO 10000 FT ENRTE TO OKC. SPOTTED LIGHT ACFT AT 10500 FT ON VFR FLT PLAN WHEN WE WERE PASSING 10600 FT. SMALL ACFT WAS ONLY A FEW HUNDRED YARDS IN FRONT OF US AND PASSED BENEATH OUR R WING BEFORE I COULD RESPOND IN ANY WAY. COPLT FLYING NEVER SAW THE CONFLICT. CONCURRENT WITH SPOTTING THE SMALL AIRPLANE, ZFW CALLED UNKNOWN TFC AT OUR 12 O'CLOCK AT 1/2 MI AND SWITCHED US TO OKC APCH. I SAID NOTHING TO THE CTLR ABOUT THE NEAR MISS, BUT DID GET A PHONE NUMBER. VIA THE PHONE CALL TO CENTER FROM OKC I LEARNED OF THE SMALL PLANE NOT BEING UNDER IFR CTL.

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.