Near midair collision. Opposite direction traffic.

Attributes
ACN	182213
Time
Date	199106
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : pdz airport : ont
State Reference	CA
Altitude	msl bound lower : 8500 msl bound upper : 8500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ont
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	arrival other arrival star : star enroute airway : ont
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 15000 flight time type : 4000
ASRS Report	182213
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : nmac non adherence : far other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : took evasive action none taken : insufficient time other
Consequence	other
Miss Distance	horizontal : 200 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Ont approach called traffic 1 O'clock 2 mi at 8000 ft or 8500 ft eastbound. I questioned altitude, and ont approach said you may want to level off. I broke left and called 'it's too late'. Other aircraft, an small transport Y, white/cream stripe, call sign xy. He was almost head on with approximately closure rate of greater than 800 ft per second. He broke to left shortly after I did. Too short a warning from ont approach. Questions: 1) why was small transport Y at 8500 ft/8000 ft eastbound? 2) why was approach's warning so close? 3) why were we given a lower altitude directly in small transport Y's path and through his altitude while we were both under ont approach control?

Original NASA ASRS Text

Title: NMAC. OPPOSITE DIRECTION TFC.

Narrative: ONT APCH CALLED TFC 1 O'CLOCK 2 MI AT 8000 FT OR 8500 FT EBOUND. I QUESTIONED ALT, AND ONT APCH SAID YOU MAY WANT TO LEVEL OFF. I BROKE L AND CALLED 'IT'S TOO LATE'. OTHER ACFT, AN SMT Y, WHITE/CREAM STRIPE, CALL SIGN XY. HE WAS ALMOST HEAD ON WITH APPROX CLOSURE RATE OF GREATER THAN 800 FT PER SECOND. HE BROKE TO L SHORTLY AFTER I DID. TOO SHORT A WARNING FROM ONT APCH. QUESTIONS: 1) WHY WAS SMT Y AT 8500 FT/8000 FT EBOUND? 2) WHY WAS APCH'S WARNING SO CLOSE? 3) WHY WERE WE GIVEN A LOWER ALT DIRECTLY IN SMT Y'S PATH AND THROUGH HIS ALT WHILE WE WERE BOTH UNDER ONT APCH CTL?

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.