Narrative:

Flight was cleared civet arrival over civet intersection via civet arrival to lax landing runway 25L. Passing bremr intersection at 14000 ft MSL socal advised 'traffic 10 O'clock position a B767 crossing in front to land lax north complex' we established visual contact. It appeared to be over seal beach VOR proceeding northwest toward lax estimated altitude approximately 13000 ft MSL. We were descending to cross arnes intersection at 10000 ft MSL, ATC advised us to slow to 250 KTS. While slowing and descending it was evident that both aircraft were going to meet at arnes at the same altitude. The B767 never (apparently) saw us. Evasive action was necessary to remain clear of them. We began a shallow climbing right turn to maintain visual with the B767. We crossed arnes at 13000 ft MSL and maneuvered behind the B767. Socal advised we were 1000 ft above B767. TCASII alerted 'descend, descend now.' this action would have (if followed) descended us into the B767. VMC and visual contact averted an ugly scene.

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Original NASA ASRS Text

Title: A DSNDING DC10 FREIGHTER HAS A POTENTIAL CONFLICT WITH A XING, DSNDING B767 THAT WAS ISSUED AS TFC BY APCH CTLR AT SCT, CA. TFC WAS PROGRAMMED TO CROSS ARNES AT THE SAME ALT AT THE SAME TIME, XING PATHS FOR PARALLEL RWYS AT THE N AND S COMPLEXES AT LAX.

Narrative: FLT WAS CLRED CIVET ARR OVER CIVET INTXN VIA CIVET ARR TO LAX LNDG RWY 25L. PASSING BREMR INTXN AT 14000 FT MSL SOCAL ADVISED 'TFC 10 O'CLOCK POS A B767 XING IN FRONT TO LAND LAX N COMPLEX' WE ESTABLISHED VISUAL CONTACT. IT APPEARED TO BE OVER SEAL BEACH VOR PROCEEDING NW TOWARD LAX ESTIMATED ALT APPROX 13000 FT MSL. WE WERE DSNDING TO CROSS ARNES INTXN AT 10000 FT MSL, ATC ADVISED US TO SLOW TO 250 KTS. WHILE SLOWING AND DSNDING IT WAS EVIDENT THAT BOTH ACFT WERE GOING TO MEET AT ARNES AT THE SAME ALT. THE B767 NEVER (APPARENTLY) SAW US. EVASIVE ACTION WAS NECESSARY TO REMAIN CLR OF THEM. WE BEGAN A SHALLOW CLBING R TURN TO MAINTAIN VISUAL WITH THE B767. WE CROSSED ARNES AT 13000 FT MSL AND MANEUVERED BEHIND THE B767. SOCAL ADVISED WE WERE 1000 FT ABOVE B767. TCASII ALERTED 'DSND, DSND NOW.' THIS ACTION WOULD HAVE (IF FOLLOWED) DSNDED US INTO THE B767. VMC AND VISUAL CONTACT AVERTED AN UGLY SCENE.

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.