VFR traffic called late to medium large transport on vector for visual approach. See and avoid conce...

Attributes
ACN	111849
Time
Date	198905
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ont
State Reference	CA
Altitude	msl bound lower : 5200 msl bound upper : 5200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ont
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport
Navigation In Use	Other Other
Flight Phase	descent : approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 187 flight time total : 6704 flight time type : 794
ASRS Report	111849
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : took evasive action other
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Aircraft was on radar vectors for an ILS 26L approach at ontario. We were cleared for the approach. Approach control called mlt traffic at 11 O'clock, below, which we identified. Approach then said 'if you don't have additional traffic at 11-12 O'clock, 1 mi, opposite direction, altitude 5200', suggest you turn right (our aircraft was descending through 5600'). Captain began an immediate right turn and we both spotted a single engine light aircraft. Aircraft passed behind our aircraft. Captain called the controller upon landing. The controller told the captain he had the traffic, but was too busy to call it sooner. It is imperative that we be notified as soon as possible anytime a traffic conflict exists. It is doubly important in the los angeles area where the smog makes it especially difficult to see light aircraft.

Original NASA ASRS Text

Title: VFR TRAFFIC CALLED LATE TO MLG ON VECTOR FOR VISUAL APCH. SEE AND AVOID CONCEPT.

Narrative: ACFT WAS ON RADAR VECTORS FOR AN ILS 26L APCH AT ONTARIO. WE WERE CLRED FOR THE APCH. APCH CTL CALLED MLT TFC AT 11 O'CLOCK, BELOW, WHICH WE IDENTIFIED. APCH THEN SAID 'IF YOU DON'T HAVE ADDITIONAL TFC AT 11-12 O'CLOCK, 1 MI, OPPOSITE DIRECTION, ALT 5200', SUGGEST YOU TURN RIGHT (OUR ACFT WAS DESCENDING THROUGH 5600'). CAPT BEGAN AN IMMEDIATE RIGHT TURN AND WE BOTH SPOTTED A SINGLE ENGINE LIGHT ACFT. ACFT PASSED BEHIND OUR ACFT. CAPT CALLED THE CTLR UPON LNDG. THE CTLR TOLD THE CAPT HE HAD THE TFC, BUT WAS TOO BUSY TO CALL IT SOONER. IT IS IMPERATIVE THAT WE BE NOTIFIED AS SOON AS POSSIBLE ANYTIME A TFC CONFLICT EXISTS. IT IS DOUBLY IMPORTANT IN THE LOS ANGELES AREA WHERE THE SMOG MAKES IT ESPECIALLY DIFFICULT TO SEE LIGHT ACFT.

Data retrieved from NASA's ASRS site as of August 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.

VFR traffic called late to medium large transport on vector for visual approach. See and avoid concept.