A GIV FLC FAILS TO FOLLOW THEIR CLRNC FROM LAX; W OF V23 AND OVERSHOOTING THEIR ASSIGNED ALT OF 9000 FT BY SCT; CA.

Narrative

ON RECOLLECTION; I CERTAINLY THINK A CONTRIBUTING FACTOR WAS BACK AROUND ORIGINAL PREFLT AND FLT PLANNING. I ENTERED THE FILED FLT PLAN IN THE COMPUTER AND WE COMPLETED ALL CHKS. WHEN CLRNC WAS RECEIVED; THE ONLY DIFFERENCE WAS V23 VERSUS DIRECT 'SHAFTER' WHICH I DIDN'T ENTER. AFTER TKOF; XING THE LAX 310 DEG RADIAL; TURN TO 250 DEGS AND CLRED TO 3000 FT. SUBSEQUENT CTL VECTORS AND A FURTHER CLB TO 7000 FT. I RECALL CLRED TO 9000 FT; WHICH WAS ENTERED IN THE ALT ANNUNCIATOR. THEN WE WERE TOLD TO INTERCEPT V23; WHICH THE CAPT ASKED FOR IN THE COMPUTER. ABOUT THE SAME TIME AS I WENT BACK INTO THE COCKPIT (HEAD DOWN) TO VERIFY THE ROUTING; I HEARD THE CAPT SAY HIS SCREEN HAD BLANKED AND WAS GOING 'STANDBY.' THIS WAS IN ADDITION TO AN INTERMITTENT #1 XPONDER; WHICH WE HAD BOTH NOTICED. AS I RUMMAGED BTWN CHARTS AND MAPS; I LOOKED UP AND SAW 9000 FT RAPIDLY APCHING ON THE ALTIMETER AND CALLED 'ALT.' THE CAPT IMMEDIATELY BANKED HARD AND PUSHED OVER (NO PAX ABOARD). NO ALT WARNING WAS EVER HEARD AND I NOTICED WE WERE BACK BTWN 7000-8000 FT WITH A SLOW RATE OF CLB. SHORTLY THEREAFTER; CTR NOTIFIED US TO CONTACT APCH'S TELEPHONE NUMBER AT DEST. I SHOULD HAVE BEEN PAYING MORE ATTN TO THE FLT PLAN.