B757-200 CREW HAD RWY INCURSION AT SNA.

Narrative

WITH A RUSHED PREFLT PREPARATION; DUE TO THE GATE ARR OF ACFT AT THE GATE; PREFLT DUTIES COMMENCED 25 MINS PRIOR TO SCHEDULED DEP. THE CREW HAD ALREADY BEEN RUSHED BY DEALING WITH A SCHEDULING IRREGULARITY. I HAD FINISHED 36 MINS OF TALKING TO RESCHEDULE A TRAINING TRIP. AT PUSHBACK; IT APPEARED ALL ITEMS WERE COMPLETED AND THE SPECIAL TKOF AT SNA WAS BRIEFED. AFTER ENG START AND DISCONNECT; I THOUGHT WE WERE CLRED BY GND TO 'TURN L AT TXWY K; TAXI ACROSS RWY 19L&19R AND HOLD SHORT OF RWY 19R AT TXWY B.' THE FO READ BACK 'TURN L AT TXWY K; CROSS RWY 19L AND HOLD SHORT OF RWY 19R. (I DID NOT LEARN THIS UNTIL AFTER THE EVENT.) ON TAXI APCHING RWY 19R; I NOTICED A CESSNA ON APPROX 4 MI FINAL; BUT CONTINUED ACROSS THE RWY AS I THOUGHT I WAS CLRED. THE FO WAS 'HEADS DOWN' APCHING THE RWY; AND DIDN'T NOTICE I WAS XING RWY 19R UNTIL I WAS ON THE RWY. AT THAT POINT; THE ONLY COURSE OF ACTION WAS TO CONTINUE ACROSS. REACHING TXWY B; THE TWR GAVE US A PHONE NUMBER TO CALL; AND THE PROB WAS OBVIOUS. WE HEARD THE TWR GIVING THE CESSNA THE CHOICE TO LAND OR GO AROUND -- HE WENT AROUND. IN HINDSIGHT; IT'S REAL CLR I LET THE DESIRE TO OPERATE 'ON TIME' PRESSURE ME INTO NOT TAKING THE TIME TO ENSURE 'WE WERE CLRED ACROSS RWY 19R.' THIS IS A CLASSIC RUSH SCENARIO. SUPPLEMENTAL INFO FROM ACN 486810: WE ARRIVED TO OPS AT SNA ON DAY #2 OF AN IOE (TRAINING) IDENT ON TIME. HOWEVER; THE LCA (CAPT) SPENT 30 MINS OF OUR BRIEFING/PREFLT TIME TRYING TO REPAIR A SCHEDULING CHANGE WE HAD JUST BEEN NOTIFIED OF. AS WELL; THE ACFT ARRIVED LATE TO THE GATE; SO OUR PREFLT TIME WAS COMPRESSED. THE TEMPO WAS SET -- RUSH TO GET OUT ON TIME. BETTER CHOICE; STEP BACK; SLOW DOWN AND ACCEPT A LATE DEP. ADD TO THIS SIT MY FIRST DEP FROM SNA (WHICH IS A COMPLEX MANEUVER) IN AN ACFT WHICH I AM UNFAMILIAR. THE RESULT -- A BREAK IN HABIT PATTERNS THAT COULD HAVE PREVENTED THE INCIDENT. WE PUSHED JUST 4 MINS LATE; AND THEN WERE CLRED TO 'RWY 19R; CROSS RWY 19L AT TXWY K; HOLD SHORT OF RWY 19R;' WHICH I READ BACK. AS WE APCHED RWY 19L ON TXWY K; I SAW A SINGLE ENG CESSNA ABOUT 4 MI OUT (I ASSUMED FOR RWY 19L). I WENT HEADS DOWN TO GET NEW WTS; UPDATE RWY PERFORMANCE DATA AND RESET THE TKOF AIRSPDS. AT THE SAME TIME; WE WERE GIVEN A FREQ CHANGE TO TWR. AS I MADE THE FREQ CHANGE; I HEARD THE CAPT SAY 'FINAL'S CLR.' I LOOKED UP; SAW WE WERE ENTERING RWY 19R; AND THE CESSNA WAS ABOUT 2 1/2 MI OUT. I SAID 'I DON'T THINK WE WERE CLRED TO CROSS THIS RWY' (TOO LATE). AS WE EXITED RWY 19R; TWR GAVE THE CESSNA THE CHOICE TO LAND OR GO AROUND (THEY WERE STILL 1 MI OUT). THEY CHOSE TO GO AROUND. THE TWR ALSO TOLD US TO CALL THEM AFTER LNDG. HAD WE NOT BEEN RUSHED; HAD WE SLOWED DOWN; HAD I BEEN MORE FAMILIAR WITH THE ARPT AND THE ACFT OR HAD I NOT BEEN 'HEADS DOWN' (THE PROPER CHOICE AT THE TIME); THIS INCIDENT COULD HAVE BEEN PREVENTED.