PLTDEV; CROSSED RWY WITHOUT CLRNC.

Narrative

WE WERE HOLDING IN THE RWY 22 HOLDING PAD. WE HAD A MECHANICAL PROB AND HAD TO RETURN TO THE GATE. I WAS LISTENING TO BOTH THE COPLT TALKING TO MAINT AND GND CTL. WE RECEIVED A CLRNC TO RETURN TO THE GATE AFTER ANOTHER ACFT PASSED IN FRONT OF US. AS WE WERE TURNING INTO THE ALLEY GND CTL CALLED TO ASK US TO CALL THEM WHEN WE GOT INTO THE GATE. ON THE PHONE THE CTLR INFORMED ME THE CLRNC WAS TO HOLD SHORT OF RWY 29R ON TXWY C AFTER THE OTHER ACFT WENT BY. I MUST HAVE BEEN DISTRACTED LISTENING TO THE MAINT PROB BECAUSE I THOUGHT THE CLRNC WAS TO RETURN TO THE GATE ONCE THE OTHER ACFT WAS CLR. BOTTOM LINE IS; THE PRIMARY JOB IS TO PAY ATTN TO THE MOVEMENT OF THE ACFT; ALL THE OTHER STUFF CAN WAIT UNTIL YOU'RE PARKED AT THE GATE. SUPPLEMENTAL INFO FROM ACN 296158: I SWITCHED TO THE MAINT FREQ AND WAS TOLD THAT WE WOULD HAVE TO RETURN TO THE GATE. I ADVISED THE CAPT; THEN WENT TO RAMP CTL FREQ TO FIND OUT TO WHICH GATE WE WOULD RETURN. AFTER RETURNING I SWITCHED TO GND CTL AND ADVISED THEM OF OUR SIT. HE TOLD US TO GIVE WAY TO 1 ACFT AND RETURN TO THE GATE FROM THE WAY WE CAME AND TO HOLD SHORT OF RWY 29R. AFTER I READ BACK THE TAXI INSTRUCTIONS; I CALLED MAINT BACK TO INFORM THEM OF WHAT GATE WE WERE RETURNING TO AND THEN I CALLED DISPATCH TO ADVISE THEM. DURING THE RADIO CALLS WE TAXIED ACROSS RWY 29R. AFTER XING RWY 29R I SWITCHED TO GND IN TIME TO HEAR HIM INSTRUCT US TO CALL THE TWR WHEN WE ARRIVED AT THE GATE. I SHOULD HAVE WAITED WITH MY RADIO CALLS UNTIL XING THE RWY. IT ALL COMES BACK TO 'AVIATE; NAV; AND COMMUNICATE.'