A B757-200 CARGO FLT HS A HDG TRACK DEV ON THE LAXX SID DEP W OF LAX; CA.

Narrative

LAXX 3 DEP. CREW BRIEFED AND DISCUSSED THE SID; INCLUDING THE 220 DEG HDG AT THE SMO 160 DEG RADIAL. GIVEN 2000 FT RESTR INITIALLY; THEN IN FAIRLY RAPID SEQUENCE 3000 FT; THEN 4000 FT BY SOCAL DEP. NOTICED WE HAD PASSED THE SMO 160 DEG RADIAL AND BEGAN TURN WHEN SOCAL SAID 'LOOKS LIKE YOU'RE GOING STRAIGHT OUT; TURN L HDG 190 DEGS.' IN EXAMINING OUR LATE TURN; WE NOTICED A FEW FACTORS. FIRST; BOTH PLTS ARE ON 'RESERVE' AND HAD TO FLOWN OUT OF LAX FOR MANY YRS. LAST MIN CHANGE RESULTED IN A TAXI RIDE FROM SNA TO LAX TO COVER THIS FLT. CREW DISCUSSED THE RECENT 'NEAR HIT' OF A CARGO ACFT AND A LIGHT ACFT AT LAX. OUR COMPANY DOES NOT DEEM TCASII NECESSARY ON A $55;000;000 ACFT; SO WE RESOLVED BEFORE TKOF THAT WE WOULD MAKE EXTRA EFFORT TO 'STAY OUTSIDE' FOR TFC. OBVIOUSLY WE STAYED 'OUTSIDE' TOO MUCH; AND WERE SLOW TO START OUR TURN. THE TURN POINT (SMO 160 DEG RADIAL) HAD BEEN ENTERED IN THE FMC AND SELECTED MANUALLY ON THE VOR; BUT OUR ATTN OUTSIDE DIVERTED OUR ATTN TO TIMELY NAV. THE CONSTANT ALT CHANGES; PLUS A SPD RESTR ISSUED AT ABOUT 3000 FT FURTHER DIVERTED OUR ATTN. IN DISCUSSING OUR ERROR; WE RESOLVED TO PAY MORE ATTN TO ALL THE DETAILS. DUE TO THE RECENT CARGO 'NEAR HIT;' WE WERE OVERLY FIXATED ON COLLISION AVOIDANCE. AUTOPLT COULD HAVE BEEN USED; BUT I AM NOT SURE OF ITS VALUE IN THIS CASE; SINCE OUR ERROR WAS NOT ENOUGH TIME 'INSIDE' THE COCKPIT. NORMALLY ON THE B757; THE OPPOSITE IS TRUE. WE DO NOT THINK ANY CONFLICTS OCCURRED DUE TO OUR LATE TURN.