B727 DSNDS BELOW HUNDA INTXN DURING APCH TO ILS RWY 25L.

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INBOUND TO LAX VIA CIVET ARR. CLRED FOR ILS RWY 25L AFTER ARNES. WX CLR; ARPT IN SIGHT FROM START OF PROFILE 50 MI AWAY. PROBS WITH FOLLOWING GS WELL KNOWN; BRIEFED PF (COPLT) ABOUT NOT FOLLOWING GS; RECOMMENDED STAYING 1 DOT HIGH UNTIL GS INTERCEPT ALT (PUBLISHED); BRIEFED XCHKING CHARTED MINIMUM ALTS ON APCH PLATE ONCE INSIDE ARNES. THE FO WAS NEW TO THE SEAT; FRESH FROM TRAINING; CHOSE TO FLY TRANSITION PORTION OF RWY 25L ILS AS A NON PRECISION APCH; MEANING GET TO EACH ALT EARLY AND LEVEL OFF. I CAUTIONED HIM SEVERAL TIMES ABOUT NOT GETTING TOO LOW; SURE ENOUGH AT HUNDA (LAX 12.2) HE FLEW BELOW CHARTED ALT -- I CALLED HIS DEV AT 100 FT LOW; HE ACTUALLY GOT TO 300 FT LOW BEFORE I GOT HIM TO CLB BACK TO PROPER ALT. ARPT IN SIGHT AT ALL TIMES; SAFETY OF FLT WAS NEVER AN ISSUE. NOTE: THERE IS A HUGE SAFETY PROB ON THIS ARR WHERE CREW WORKLOAD IS REQUIRED TO BE SO HIGH TO AVOID WHAT APPEARS TO BE AN FAA HARASSMENT ISSUE RATHER THAN GENUINE SAFETY OF FLT. WITH THE HIGH FREQ OF CIVET/RWY 25L ARRS; EITHER CHARTING OF THE PROC NEEDS TO BE CHANGED OR VOLUME OF THE RWY 25L GS NEEDS TO BE CHANGED TO BE USEFUL FROM ARNES INTO THE ARPT. THE SIT AS IT EXISTS IS UNSAFE BECAUSE OF THE EXTRA WORKLOAD AND NEEDS TO BE CORRECTED BY THE AIRWAY AND TERPS PEOPLE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR FILED RPT MAINLY FOR IMMUNITY PURPOSES; BUT; REALLY HAS GREAT APPREHENSION OVERFLYING INTO LAX. HE IS CERTAIN THAT THEY ARE WATCHING ALL XING ALTS VERY CLOSELY IN ORDER TO CATCH THE SLIGHTEST DEV. THE FO WAS FLYING AND THE CAPT WAS COACHING THE FO ON HOW TO FLY THE ILS RWY 25L. FO WANTED TO FLY IT AS A NON PRECISION APCH. AS THE ACFT STEPPED DOWN FOR THE XING ALTS; IT WAS TIRING THE PF. HE EVENTUALLY MADE THE ERROR OF DROPPING LOW 300 FT ON THE HUNDA XING. ACFT WAS QUICKLY AND EASILY RESTORED TO PROPER ALT. CAPT WAS APPREHENSIVE ABOUT THE GS GIVING PROPER ALT PROTECTION. HE WAS REASSURED THAT IF HE WAS FLYING 1 DOT HIGH; IT WOULD BE A GOOD INDICATION THAT NO XING ALTS WERE VIOLATED. PLT ALSO STATED THAT; IF THE APCH CTLR HAD MADE THE STATEMENT; 'CLRED FOR APCH TO ILS RWY 25L; COMPLY WITH ALL ALT RESTRS;' IT WOULD HAVE ALERTED THE WHOLE FLC TO BE CONSCIOUS OF BEING IN COMPLIANCE WITH ANY ARR RESTRS.