Flight crew of medium large transport on descent and approach to lax runway 25L had an light transport type aircraft pass over left to right missing by 100'.

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Attributes
ACN	162128
Time
Date	199011
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent : approach descent other
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach descent other
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 240 flight time total : 10000 flight time type : 3000
ASRS Report	162128
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : instrument pilot : commercial
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 200 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

About OM we were startled to see an light transport aircraft sliding down and back very close at our one O'clock position less than 200' away. He had apparently been above us (blind spot to us) and was easing downward to get in a position to land as we were. At first I thought he was going to land on the same runway 25L. He was slower and we quickly passed him and then became aware he was landing on runway 25R. We continued to an uneventful landing and did not have to take evasive action. I called lax approach control after I got on the ground and found out the smaller aircraft had us in sight and had been cleared for a visibility approach. We had been informed of his position previously (about 20 mi out) and were told he would be on our left as we approached the OM. We did not see him then or acknowledge that we had. I believe the light transport passed too close to my aircraft on his visibility approach. I also think we should have been advised by lax approach control of his new position on our right and in front of us and above us!

Original NASA ASRS Text

Title: FLC OF MLG ON DESCENT AND APCH TO LAX RWY 25L HAD AN LTT TYPE ACFT PASS OVER LEFT TO RIGHT MISSING BY 100'.

Narrative: ABOUT OM WE WERE STARTLED TO SEE AN LTT ACFT SLIDING DOWN AND BACK VERY CLOSE AT OUR ONE O'CLOCK POS LESS THAN 200' AWAY. HE HAD APPARENTLY BEEN ABOVE US (BLIND SPOT TO US) AND WAS EASING DOWNWARD TO GET IN A POS TO LAND AS WE WERE. AT FIRST I THOUGHT HE WAS GOING TO LAND ON THE SAME RWY 25L. HE WAS SLOWER AND WE QUICKLY PASSED HIM AND THEN BECAME AWARE HE WAS LNDG ON RWY 25R. WE CONTINUED TO AN UNEVENTFUL LNDG AND DID NOT HAVE TO TAKE EVASIVE ACTION. I CALLED LAX APCH CTL AFTER I GOT ON THE GND AND FOUND OUT THE SMALLER ACFT HAD US IN SIGHT AND HAD BEEN CLRED FOR A VIS APCH. WE HAD BEEN INFORMED OF HIS POS PREVIOUSLY (ABOUT 20 MI OUT) AND WERE TOLD HE WOULD BE ON OUR L AS WE APCHED THE OM. WE DID NOT SEE HIM THEN OR ACKNOWLEDGE THAT WE HAD. I BELIEVE THE LTT PASSED TOO CLOSE TO MY ACFT ON HIS VIS APCH. I ALSO THINK WE SHOULD HAVE BEEN ADVISED BY LAX APCH CTL OF HIS NEW POS ON OUR R AND IN FRONT OF US AND ABOVE US!

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.