An astar 350 has a potential conflict with crossing NORAC traffic.

Attributes
ACN	549822
Time
Date	200205
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : zzz.vortac
State Reference	US
Altitude	msl single value : 2200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : zzz.tracon
Operator	general aviation : personal
Make Model Name	AS 350 Astar/Ecureuil
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	None
Aircraft 2
Controlling Facilities	tracon : zzz.tracon
Make Model Name	Small Aircraft
Flight Phase	cruise : level
Person 1
Affiliation	Other
Function	flight crew : single pilot
Person 2
Function	flight crew : single pilot
Events
Anomaly	conflict : airborne less severe non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 3000 vertical : 300
Supplementary
Problem Areas	Airspace Structure Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance

Narrative:

While in a cruise flight profile at 2200 ft MSL, heading 185 degrees, a single engine airplane suddenly appeared at my 2 O'clock position. The airplane was traveling from northwest to southeast. I placed my aircraft in a climbing l-hand turn to avoid the airplane and maintained visual separation. The distance between the 2 aircraft estimated to be 1/2 mi. The airplane did not appear to initiate any type of evasive maneuver. I was maintaining a listening watch on both unicom and approach control. The airplane approached my aircraft from the right rear. This put the airplane in a blind spot. It appears to me the pilot of the airplane never did see my aircraft. I believe the other aircraft should have had me in sight long before I had acquired him based upon the position of the 2 aircraft. Corrective actions: be vigilant on see and avoid, use proper scanning techniques, use radar advisories if available, and use TCASII if available.

Original NASA ASRS Text

Title: AN ASTAR 350 HAS A POTENTIAL CONFLICT WITH XING NORAC TFC.

Narrative: WHILE IN A CRUISE FLT PROFILE AT 2200 FT MSL, HDG 185 DEGS, A SINGLE ENG AIRPLANE SUDDENLY APPEARED AT MY 2 O'CLOCK POS. THE AIRPLANE WAS TRAVELING FROM NW TO SE. I PLACED MY ACFT IN A CLBING L-HAND TURN TO AVOID THE AIRPLANE AND MAINTAINED VISUAL SEPARATION. THE DISTANCE BTWN THE 2 ACFT ESTIMATED TO BE 1/2 MI. THE AIRPLANE DID NOT APPEAR TO INITIATE ANY TYPE OF EVASIVE MANEUVER. I WAS MAINTAINING A LISTENING WATCH ON BOTH UNICOM AND APCH CTL. THE AIRPLANE APCHED MY ACFT FROM THE R REAR. THIS PUT THE AIRPLANE IN A BLIND SPOT. IT APPEARS TO ME THE PLT OF THE AIRPLANE NEVER DID SEE MY ACFT. I BELIEVE THE OTHER ACFT SHOULD HAVE HAD ME IN SIGHT LONG BEFORE I HAD ACQUIRED HIM BASED UPON THE POS OF THE 2 ACFT. CORRECTIVE ACTIONS: BE VIGILANT ON SEE AND AVOID, USE PROPER SCANNING TECHNIQUES, USE RADAR ADVISORIES IF AVAILABLE, AND USE TCASII IF AVAILABLE.

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.