What was found
(CAN) CIRCUIT BREAKER F6 ON THE R/H ESSENTIAL BUS WHICH WAS LABELED SPLRS-INBD ARM POPPED TWICE. IT WAS FOUND POPPED DURING PRE-FLIGHT CHECKS, THEN RESET, AND POPPED AGAIN DURING TAXI OUT. MAINTENANCE ACTION HAD THE CONNECTOR 2700-P31 RETERMINATED. WIRE 2700-WBA-20-4/BLK WAS FOUND SHORTED TO GROUND AT THE BACKSHELL OF CONNECTOR 2700-P31. WIRING WAS RETERMINATED AT THE CONNECTOR BEYOND THE DAMAGED AREA. THE SYSTEM WAS TESTED SERVICEABLE IAW AMM TASK 27-61-00-710-801.