Near midair collision.

Attributes
ACN	286808
Time
Date	199410
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : pdz airport : ont
State Reference	CA
Altitude	msl bound lower : 7000 msl bound upper : 8200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other cruise other
Route In Use	departure other departure sid : sid enroute : on vectors enroute airway : ont
Flight Plan	IFR
Aircraft 2
Make Model Name	Cessna 150
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 11800 flight time type : 2200
ASRS Report	286808
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 90 flight time total : 7580 flight time type : 250
ASRS Report	286988
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : nmac other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Departed ont at XA05 on prado 4 departure. Was assigned heading 070 degrees and maintain 7000 ft by departure control and was handed off to ZLA. Upon initial call, no contact. We received a TCASII TA at 11 O'clock and 4 NM. Called center again, still no contact. TCASII followed with 'monitor vertical speed.' we were still level at 7000 ft. TCASII followed with an RA 'climb, climb, now.' first officer executed an immediate climb to 8200 ft until RA 'clear of conflict.' I contacted center on third call. He said he had just sat down and told us to maintain 9000 ft and fly heading 100 degrees and intercept trm radial 263 degrees. I asked him if he showed traffic passing below us at 400 ft. He said that it had just popped up but we were not clear of it. I caught a glimpse of a white C-150 pass below our left wing at 400 ft confirming TCASII advisory alert and warning.

Original NASA ASRS Text

Title: NMAC.

Narrative: DEPARTED ONT AT XA05 ON PRADO 4 DEP. WAS ASSIGNED HDG 070 DEGS AND MAINTAIN 7000 FT BY DEP CTL AND WAS HANDED OFF TO ZLA. UPON INITIAL CALL, NO CONTACT. WE RECEIVED A TCASII TA AT 11 O'CLOCK AND 4 NM. CALLED CTR AGAIN, STILL NO CONTACT. TCASII FOLLOWED WITH 'MONITOR VERT SPD.' WE WERE STILL LEVEL AT 7000 FT. TCASII FOLLOWED WITH AN RA 'CLB, CLB, NOW.' FO EXECUTED AN IMMEDIATE CLB TO 8200 FT UNTIL RA 'CLR OF CONFLICT.' I CONTACTED CTR ON THIRD CALL. HE SAID HE HAD JUST SAT DOWN AND TOLD US TO MAINTAIN 9000 FT AND FLY HDG 100 DEGS AND INTERCEPT TRM RADIAL 263 DEGS. I ASKED HIM IF HE SHOWED TFC PASSING BELOW US AT 400 FT. HE SAID THAT IT HAD JUST POPPED UP BUT WE WERE NOT CLR OF IT. I CAUGHT A GLIMPSE OF A WHITE C-150 PASS BELOW OUR L WING AT 400 FT CONFIRMING TCASII ADVISORY ALERT AND WARNING.

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.