2 aircraft passed in close proximity.

Attributes
ACN	144359
Time
Date	199005
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : sfo
State Reference	CA
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : oak
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 23000
ASRS Report	194430
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : nmac
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance controller : provided flight assist other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

On radar vector heading 290 degrees, altitude 6000', bay approach control ordered immediate left turn to 240 degrees due conflicting traffic showing at 600'. I had a momentary glimpse of traffic which I thought was white in color and high-wind, but against white cloud background I could not tell how close or what exact type.

Original NASA ASRS Text

Title: 2 ACFT PASSED IN CLOSE PROX.

Narrative: ON RADAR VECTOR HDG 290 DEGS, ALT 6000', BAY APCH CTL ORDERED IMMEDIATE LEFT TURN TO 240 DEGS DUE CONFLICTING TFC SHOWING AT 600'. I HAD A MOMENTARY GLIMPSE OF TFC WHICH I THOUGHT WAS WHITE IN COLOR AND HIGH-WIND, BUT AGAINST WHITE CLOUD BACKGROUND I COULD NOT TELL HOW CLOSE OR WHAT EXACT TYPE.

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.