AN UNSUCCESSFUL TRIP FOR MAINT AT DPA CONTINUES TO DETERIORATE AFTER A MISSED TURN AND UNAUTH XING OF RWY 28 ON THE WAY TO RWY 20R FOR DEP.

Narrative

WE WERE GIVEN A TAXI CLRNC TO RWY 20R. AFTER XING RWY 15 WE NEEDED TO MAKE A R TURN ONTO TXWY E; BUT WE MADE A L TURN ONTO TXWY E. THE CAPT HAS THE STEERING TILLER; HE WAS DRIVING. I HAD THE ARPT DIAGRAM OPEN WHILE RUNNING THE TAXI/BEFORE TKOF CHKS. I TRUSTED THE CAPT TO KNOW WHERE HE WAS GOING; AS I KNOW HE HAS BEEN TO THIS ARPT MANY TIMES. AS HE MADE THE L TURN; I THOUGHT IT WAS THE WRONG WAY; SO I ASKED THE CAPT WHERE HE'S GOING; IF HE IS GOING THE RIGHT WAY. HIS COMMENT WAS 'JUST WORRY ABOUT THE CHKLIST AND I'LL WORRY ABOUT WHERE WE ARE GOING.' AT THIS POINT WE WERE XING THE HOLD SHORT LINE FOR RWY 10/28; I LOOKED IN BOTH DIRECTIONS TO CLR THE AREA FOR TFC; CALLED IT CLR; THEN PULLED THE TAXI DIAGRAM CLOSER AND CONFIRMED WE WENT THE WRONG WAY AND SHOWED THE CAPT. AT THAT POINT I THINK HE KNEW; BUT DIDN'T SAY ANYTHING. NEXT THE GND CTLR ADVISED US OF OUR ERROR; GAVE US RWY LENGTH FROM INTXN G THEN ASKED IF WE WERE AWARE THAT WE CROSSED AN ACTIVE RWY. I WAS UPSET AT MY CAPT AND WANTED TO SAY MORE; BUT SAID 'I GUESS WE DID.' NOTHING FURTHER WAS SAID. THE DEP WENT WITHOUT FURTHER INCIDENT. I THINK MY CAPT'S JUDGEMENT WAS CLOUDED BECAUSE OUR WHOLE DAY WAS WASTED. THE GPS ISSUE; WE WENT TO DPA TO HAVE FIXED; WASN'T FIXED. IN OUR PART 91 OP; THE CAPT IS KING. I THINK MORE CRM COULD BE HELPFUL IN AVOIDING THIS KIND OF INCIDENT.