Close proximity two GA small aircraft aircraft on V71.

Attributes
ACN	171174
Time
Date	199102
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : hro
State Reference	AR
Altitude	msl bound lower : 5000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	cruise other
Route In Use	enroute airway : v71
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 30 flight time total : 485 flight time type : 178
ASRS Report	171174
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Was northbound on V71 with IFR clearance at 6000'. After conflict was verified, I realized an small aircraft Y was converging on us on an IFR clearance at 5000'. He apparently was converging from behind at approximately the 8 O'clock position, low not moving in my windscreen, with strobes flashing. I analyzed it's movements for I estimate 4-5 seconds. Didn't see any navigation lights or any other movement except for it appeared to get brighter and closer. I determined the aircraft was climbing towards me. I then made a hard right turn staying at 6000' for approximately 3 seconds, snapped level, saw him to be in the approximately same spot in windscreen and pulled power and did a diving right turn to 5000'. During the first level turn, I informed our action to center. No response. So, after second maneuver, called center again to ask about traffic and tell again what we did. He responded and said it was IFR traffic at 5000'. I feel if the controller would have told me of traffic (IFR) coming from behind and location this would have not caused a conflict, as I would have been aware.

Original NASA ASRS Text

Title: CLOSE PROX TWO GA SMA ACFT ON V71.

Narrative: WAS NBND ON V71 WITH IFR CLRNC AT 6000'. AFTER CONFLICT WAS VERIFIED, I REALIZED AN SMA Y WAS CONVERGING ON US ON AN IFR CLRNC AT 5000'. HE APPARENTLY WAS CONVERGING FROM BEHIND AT APPROX THE 8 O'CLOCK POS, LOW NOT MOVING IN MY WINDSCREEN, WITH STROBES FLASHING. I ANALYZED IT'S MOVEMENTS FOR I ESTIMATE 4-5 SECS. DIDN'T SEE ANY NAV LIGHTS OR ANY OTHER MOVEMENT EXCEPT FOR IT APPEARED TO GET BRIGHTER AND CLOSER. I DETERMINED THE ACFT WAS CLBING TOWARDS ME. I THEN MADE A HARD R TURN STAYING AT 6000' FOR APPROX 3 SECS, SNAPPED LEVEL, SAW HIM TO BE IN THE APPROX SAME SPOT IN WINDSCREEN AND PULLED PWR AND DID A DIVING R TURN TO 5000'. DURING THE FIRST LEVEL TURN, I INFORMED OUR ACTION TO CTR. NO RESPONSE. SO, AFTER SEC MANEUVER, CALLED CTR AGAIN TO ASK ABOUT TFC AND TELL AGAIN WHAT WE DID. HE RESPONDED AND SAID IT WAS IFR TFC AT 5000'. I FEEL IF THE CTLR WOULD HAVE TOLD ME OF TFC (IFR) COMING FROM BEHIND AND LOCATION THIS WOULD HAVE NOT CAUSED A CONFLICT, AS I WOULD HAVE BEEN AWARE.

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.