Near midair collision. Evasive action climb. Altitude deviation altitude excursion.

Attributes
ACN	243903
Time
Date	199306
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	msl bound lower : 12000 msl bound upper : 12400
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : lax
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other descent other
Route In Use	arrival other arrival star : star enroute airway : lax
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 180 flight time total : 15000 flight time type : 950
ASRS Report	243903
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : nmac non adherence : clearance non adherence : far other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 400 vertical : 300
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Possible TCASII save. On civet STAR to lax, told to level at 12000 ft due VFR traffic (opposite direction) at 11500 ft. Could not see any traffic due low sun in eyes and haze. Received and observed 'traffic' on TCASII coming directly toward us at minus 400 ft. Then received an RA to 'climb, climb now.' we complied and climbed to approximately 12400 ft. TCASII showed other traffic was climbing and when we were at 12400 ft the traffic passed off our right wing minus 300 ft below. Thanks TCASII. There is a much broader issue here as to why a VFR aircraft would or should be allowed to fly directly opposite a very heavy approach corridor to lax.

Original NASA ASRS Text

Title: NMAC. EVASIVE ACTION CLB. ALTDEV ALT EXCURSION.

Narrative: POSSIBLE TCASII SAVE. ON CIVET STAR TO LAX, TOLD TO LEVEL AT 12000 FT DUE VFR TFC (OPPOSITE DIRECTION) AT 11500 FT. COULD NOT SEE ANY TFC DUE LOW SUN IN EYES AND HAZE. RECEIVED AND OBSERVED 'TFC' ON TCASII COMING DIRECTLY TOWARD US AT MINUS 400 FT. THEN RECEIVED AN RA TO 'CLB, CLB NOW.' WE COMPLIED AND CLBED TO APPROX 12400 FT. TCASII SHOWED OTHER TFC WAS CLBING AND WHEN WE WERE AT 12400 FT THE TFC PASSED OFF OUR R WING MINUS 300 FT BELOW. THANKS TCASII. THERE IS A MUCH BROADER ISSUE HERE AS TO WHY A VFR ACFT WOULD OR SHOULD BE ALLOWED TO FLY DIRECTLY OPPOSITE A VERY HVY APCH CORRIDOR TO LAX.

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.