A B767 ON TAXI OUT RPTS R AFT FUEL PUMP INOP. TECHNICIAN ASKS FOR CIRCUIT BREAKER CHK. CREW RPTS BREAKER TRIPPED. TECHNICIAN HAS CREW TURN PUMP OFF AND RESET BREAKER. BREAKER STAYS IN PUMP OP NORMAL.

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FLT LEFT THE DEP GATE AND BEGAN TO TAXI OUT TO THE RWY. AT APPROX XA40; FLT X CONTACTED ACFT MAINT VIA THE RADIO. I RESPONDED TO THE RADIO CALL. THE CREW INFORMED ME THAT THE R AFT FUEL BOOST PUMP LOW PRESSURE LIGHT WAS ON WHEN THE PUMP WAS SELECTED TO THE 'ON' POS. I ASKED THE CREW TO CHK AND SEE IF THE CIRCUIT BREAKER WAS POPPED ON THE LOWER P6 PANEL. THE CREW RESPONDED THAT IT WAS. I ASKED THE CREW TO SELECT THE PUMP TO THE 'OFF' POS AND TO RESET THE BREAKER. THE CREW COMPLIED AND TOLD ME THAT THE BREAKER REMAINED IN. I THEN ASKED THEM TO TURN THE PUMP ON. THEY TURNED THE PUMP ON; AND IT WORKED NORMALLY. AT THE TIME I WAS SATISFIED THAT THIS PROB WAS AN ANOMALY AND THAT THE SAFETY OF THE FLT WAS NOT IN QUESTION. I WENT ON MY LUNCH BREAK ABOUT 30 MINS LATER; AND OUT OF CURIOSITY I CHKED TO SEE IF THERE WAS ANY PROC IN THE GPM RELATING TO CIRCUIT BREAKER RESETS. I FOUND GPM SECTION X. AT THIS POINT IN TIME I AM UNSURE AS TO THE INTENT OF THIS PARAGRAPH AS IT RELATES TO FLT X. WHAT IS THE INTENT OF THE GPM WHEN IT TELLS ME TO 'LOCATE THE CAUSE OF A TRIPPED CIRCUIT BREAKER?' DO I NEED TO CHK THE WIRING BEFORE ATTEMPTING A RESET? WHAT TROUBLESHOOTING PROCS AM I TO FOLLOW? SHOULD I HAVE TAKEN THE ACFT OTS? I DO NOT BELIEVE THAT THIS ACFT WAS OPERATED IN AN UNSAFE MANNER; BUT I THINK THAT THE GPM PROC NEEDS SOME CLARIFICATION.