AIR TAXI PLT PENETRATES RESTR AREA; MAKES 90 DEG TURN TO EXIT.

Narrative

THE EVENT WAS A PENETRATION OF RESTR AIRSPACE DURING A COMMERCIAL OP. THE WX WAS VMC; AND OPS WERE VFR. UPON DEP; DEP CTL SPECIFIED A L DOWNWIND DEP FROM MRY RWY 28L VIA RADAR VECTORS. THE DEST; SALINAS IS LOCATED CLOSELY ENOUGH TO MRY TO PROVIDE A CONSTANT THOUGH FAIRLY SIMPLE PLT WORKLOAD; GATHERING ATIS; CHKLISTS ETC. I DEPARTED MRY REQUESTING DIRECT SNS FROM DEP CTL. DEP ASSIGNED A DIRECT CLRNC STIPULATING S OF THE MRY SNS HIGHWAY. WHILE PERFORMING ALL OF THE REQUIRED DUTIES (SIMPLE PLT OPS); THE CTLR RADIOED MY FLT AND INDICATED THAT MY FLT SHOULD REMAIN S AND E OF THE HIGHWAY. I IMMEDIATELY MADE A 90 DEG TURN TO CLR THE AREA. THE CTLR RADIOED '...NOW CLRING RESTR AREA RESUME OWN NAV...' MY EVALUATION OF THIS SITUATION LEADS ME TO BELIEVE A SIMPLE CASE OF FATIGUE; (MENTAL AND PHYSICAL) AS WELL AS OPERATIONAL. CONSIDERATIONS: SIMPLE PLT OPS; MEETING BLOCK TIMES ETC. COMPOUNDED WITH GEOGRAPHICAL POSITIONING ALLOWED THIS OCCURRENCE TO DEVELOP. MY TECHNIQUES HAVE NOW CHANGED TO PRIORITIZING PLT DUTIES. AS WE HAVE ALL UNDOUBTEDLY HEARD FROM OUR PRIMARY INSTRUCTORS 'FLY THE AIRPLANE FIRST.' THIS BECOMES EVEN MORE IMPORTANT AT THE END OF A 13 HR DUTY DAY AND AS I FOUND THE 7TH LEG OF A 9 LEG DAY HAD TAKEN IT'S TOLL ON MY ABILITIES TO CONCENTRATE. ASIDE FROM THE REGULATORY CONSIDERATIONS THE SAFETY CONCERNS OF RESTR AIRSPACE ARE SELF EVIDENT. THANK GOODNESS THIS LESSON LEARNED ALLOWS ME TO IMPLEMENT NEW PRIORITIES IN THE DAYS AHEAD.