Beech BE36 flight crew has a traffic alert during cruise and takes evasive action.

Attributes
ACN	717910
Time
Date	200611
Local Time Of Day	1201 To 1800
Place
State Reference	NV
Altitude	msl single value : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla.artcc
Operator	general aviation : personal
Make Model Name	Bonanza 36
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Route In Use	enroute airway : v21.airway
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zla.artcc
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise : level
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : multi engine pilot : instrument
Experience	flight time last 90 days : 25 flight time total : 700 flight time type : 500
ASRS Report	717910
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	flight crew : took precautionary avoidance action
Miss Distance	horizontal : 0 vertical : 300
Supplementary
Problem Areas	ATC Human Performance Airspace Structure Flight Crew Human Performance Weather
Primary Problem	Ambiguous

Narrative:

We were swbound on V21; approaching MMM; 12000 ft MSL. Our skywatch system popped a 'traffic' warning; converging aircraft at 200-300 ft below. We pulled up and looked for the traffic; which very soon passed directly under us; at 400 ft or so below. ATC had given us no warning of the traffic at all. We were on an IFR plan.

Original NASA ASRS Text

Title: BEECH BE36 FLT CREW HAS A TFC ALERT DURING CRUISE AND TAKES EVASIVE ACTION.

Narrative: WE WERE SWBOUND ON V21; APCHING MMM; 12000 FT MSL. OUR SKYWATCH SYS POPPED A 'TFC' WARNING; CONVERGING ACFT AT 200-300 FT BELOW. WE PULLED UP AND LOOKED FOR THE TFC; WHICH VERY SOON PASSED DIRECTLY UNDER US; AT 400 FT OR SO BELOW. ATC HAD GIVEN US NO WARNING OF THE TFC AT ALL. WE WERE ON AN IFR PLAN.

Data retrieved from NASA's ASRS site as of January 2009 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.