Near midair collision between an EMB135 and a cessna 182 both aircraft at 8000 ft.

Attributes
ACN	562704
Time
Date	200210
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : nct.tracon
State Reference	CA
Altitude	msl bound lower : 7400 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : nct.tracon tower : gfk.tower
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 135 ER&LR
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : level
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 170 flight time total : 8000 flight time type : 710
ASRS Report	562704
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took precautionary avoidance action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 200 vertical : 400
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

We were on an IFR flight plan from sjc to mhr. We were level at 8000 ft when I saw a cessna 182 at our altitude at my 10 O'clock position on a converging course. I pointed out the traffic to my first officer, who was flying, and we deviated from our altitude down to 7400 ft. I then notified stockton approach of our near miss. We had no TCASII indication therefore I summize that he had no operational transponder. Stockton also did not inform us of his presence. This event proves the importance of looking out of the windscreen for traffic as there are aircraft flying without xponders. The cessna may not have seen us until we had passed.

Original NASA ASRS Text

Title: NMAC BTWN AN EMB135 AND A CESSNA 182 BOTH ACFT AT 8000 FT.

Narrative: WE WERE ON AN IFR FLT PLAN FROM SJC TO MHR. WE WERE LEVEL AT 8000 FT WHEN I SAW A CESSNA 182 AT OUR ALT AT MY 10 O'CLOCK POS ON A CONVERGING COURSE. I POINTED OUT THE TFC TO MY FO, WHO WAS FLYING, AND WE DEVIATED FROM OUR ALT DOWN TO 7400 FT. I THEN NOTIFIED STOCKTON APCH OF OUR NEAR MISS. WE HAD NO TCASII INDICATION THEREFORE I SUMMIZE THAT HE HAD NO OPERATIONAL XPONDER. STOCKTON ALSO DID NOT INFORM US OF HIS PRESENCE. THIS EVENT PROVES THE IMPORTANCE OF LOOKING OUT OF THE WINDSCREEN FOR TFC AS THERE ARE ACFT FLYING WITHOUT XPONDERS. THE CESSNA MAY NOT HAVE SEEN US UNTIL WE HAD PASSED.

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.