UNAUTH PENETRATION OF AIRSPACE.

Narrative

I WAS DOING A DIVERSION EXERCISE WITH MY STUDENT ON THE N SIDE OF SNA ARSA ABOVE THE 91 FREEWAY. HE CHOSE TO TAKE AS GND REF POINT A SMALL LAKE AT THE NE EDGE OF THE ARSA IN ORDER TO GIVE ME HDG AND TIME TO THE DIVERSION POINT WHICH WAS ORANGE COUNTY ARPT. AFTER HE GAVE ME HDG 210 DEG AND TIME ESTIMATED AT 6 MINS HE BEGAN HIS PROCESS. WE WERE AT 3000 FT MSL. I KNEW HE WAS GOING THROUGH THE ARSA. I WAITED A LITTLE BIT HOPING HE WILL REALIZE IT AND CHANGE HIS HDG. I THEN TOLD HIM AND WE EXITED THE ARSA. BUT WHEN WE LANDED WE HAD TO CALL ORANGE COUNTY TWR. I THEN REALIZED WE WERE JUST IN THE PATH OF ORANGE COUNTY ILS AND THEN WE MADE A BIG MESS. I TAKE THE TOTAL RESPONSIBILITY IN THIS MISTAKE AND I REALIZE BEING A CFI I SHOULD HAVE NEVER LET MY STUDENT ENTER IN THE ARSA WITH THE HOPE HE WOULD REALIZE THE ERROR. STUDENT ONLY ADMIT THEIR ERRORS AND MISTAKES WHEN THEY ARE ACTUALLY DOING THEM. NEVERTHELESS; NOBODY SHOULD EVER VIOLATE AN AIRSPACE CONSCIOUSLY AND I WILL NEVER LET MY STUDENT DO IT AGAIN -- EXPERIENCES ARE SOMETIMES THE RESULT OF MISTAKES.