Near midair collision between air carrier medium large transport and cpr light transport jet in vici...

Attributes
ACN	160874
Time
Date	199010
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : pdz airport : ont
State Reference	CA
Altitude	msl bound lower : 16500 msl bound upper : 16500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla tower : dxr
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other descent other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer observation : company check pilot
Qualification	pilot : flight engineer pilot : commercial pilot : atp pilot : instrument
Experience	flight time last 90 days : 180 flight time total : 6500 flight time type : 2500
ASRS Report	160874
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 80 flight time total : 10000 flight time type : 10
ASRS Report	160875
Events
Anomaly	conflict : nmac
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 350 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Cleared to cross dawna intersection at 12000'. Out of approximately 20000'. ATC called out traffic ahead of us at 16500'. We advised we did not have traffic in sight. Out of approximately 18000' ATC advised us that the traffic appeared to be clear and we could continue our descent to 12000' at our discretion. When we passed through 16500' traffic appeared just off to our left side approximately 200-500' away. Traffic was a cpr light transport Y VFR from las to lax at 16500'. This near miss could have been averted if ATC would have reclred us to only 17000' when we reported we didn't have the traffic in sight. The near miss could probably been avoided also if ATC hadn't advised us traffic appeared to be behind us and we could continue our descent to 12000' at our discretion as we would have stopped our descent at 17000' until we could see the traffic or we were correctly reported clear of traffic.

Original NASA ASRS Text

Title: NMAC BETWEEN ACR MLG AND CPR LTT JET IN VICINITY OF ONT.

Narrative: CLRED TO CROSS DAWNA INTXN AT 12000'. OUT OF APPROX 20000'. ATC CALLED OUT TFC AHEAD OF US AT 16500'. WE ADVISED WE DID NOT HAVE TFC IN SIGHT. OUT OF APPROX 18000' ATC ADVISED US THAT THE TFC APPEARED TO BE CLR AND WE COULD CONTINUE OUR DSNT TO 12000' AT OUR DISCRETION. WHEN WE PASSED THROUGH 16500' TFC APPEARED JUST OFF TO OUR L SIDE APPROX 200-500' AWAY. TFC WAS A CPR LTT Y VFR FROM LAS TO LAX AT 16500'. THIS NEAR MISS COULD HAVE BEEN AVERTED IF ATC WOULD HAVE RECLRED US TO ONLY 17000' WHEN WE RPTED WE DIDN'T HAVE THE TFC IN SIGHT. THE NEAR MISS COULD PROBABLY BEEN AVOIDED ALSO IF ATC HADN'T ADVISED US TFC APPEARED TO BE BEHIND US AND WE COULD CONTINUE OUR DSNT TO 12000' AT OUR DISCRETION AS WE WOULD HAVE STOPPED OUR DSNT AT 17000' UNTIL WE COULD SEE THE TFC OR WE WERE CORRECTLY RPTED CLR OF TFC.

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.

Near midair collision between air carrier medium large transport and cpr light transport jet in vicinity of ont.