CREW OF TWIN ENG TURBOJET ACFT EXPERIENCES ELECTRICAL PWR LOSS AFTER TKOF FROM SMX AND BELIEVES THAT THEY MAY HAVE ENTERED UNAUTH AIRSPACE.

Narrative

WE DEPARTED SMX; CA; ON AN IFR FLT PLAN FOR LAS; NV. WE HAD A PRIMARY INVERTER FAIL; WHICH ALSO POPPED THE BUS TIE CIRCUIT BREAKER. I LOST MY INSTS AND USED THE PEANUT GYRO TO STRAIGHTEN THE AIRPLANE OUT OF A BANKED TURN. WE RESET MY CIRCUIT BREAKER FOR THE PRIMARY INVERTER AND REGAINED MY HORIZON AND OTHER INSTS AND REQUESTED A RADAR VECTOR BACK TO SMX FOR A LNDG. ATC VECTORED US FOR A BACK COURSE APCH; AND WE LANDED. WE CALLED FOR AN A&P MECH TO TROUBLESHOOT AND FIND THE PROB. AFTER AN EXTENSIVE CHK; WE COULD NOT DUPLICATE THE PROB ON THE GND SO WE CALLED AN FBO AT LAS FOR A MORE EXTENSIVE INVESTIGATION OF THE ELECTRICAL SYS UPON OUR ARR AT LAS. ON DEPARTING A SECOND TIME; WE HAD A SIMILAR PROB BUT WITH A DIFFERENT BUS. I RESET THE BREAKER AND IT STAYED IN. WE CONTINUED TO LAS SINCE WE MADE ARRANGEMENTS AT THE FBO FOR AN EXTENSIVE MAINT CHK. THE WX WAS VFR FOR OUR ENTIRE RTE OF FLT. WHEN RETURNING; ONE OF THE PAX INFORMED ME THAT WE MAY HAVE ENTERED VANDENBURG AFB AIRSPACE ON THE PRECEDING DAY'S FLT. NEITHER MY FO NOR I WERE AWARE OF THIS SINCE WE BOTH HAVE NEVER FLOWN OUT OF SMX BEFORE.