Narrative:

After clearing runway 17 at sdf, aircraft was cleared 'to the ramp.' because sdf is an airport frequently used by the company, PIC in right seat told sic in left seat that taxi route would involve 'a left turn, then a right turn.' airport diagram was attached to copilot's yoke. The required PIC's intended taxi route involved crossing approach end of runway 29 then turning left on taxiway to parallel runway 29 for short distance, then right turn on taxiway to parallel runway 35 to ramp. Approaching runway 29, PIC (in right seat) called 'clear right,' sic called 'clear left.' PIC then directed attention inside cockpit to complete after landing checklist. After several seconds, ground control told aircraft to 'hold short of runway 35,' then 'make 180 degree turn, taxi back to clear runway 15 taxiway G(?).' PIC looked up and discovered that sic had turned left onto runway 29, instead of crossing runway 17. Aircraft complied with ground controller's instructions. No conflicts noted. Both pilots need to be heads out of cockpit approaching any taxiway/runway intersection. Do not assume pilot at controls is familiar with airport. Even in a small cockpit, both pilots should have own charts. Especially critical in high workload environment.

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Original NASA ASRS Text

Title: FO OCCUPYING THE CAPT'S L SEAT WAS TAXIING THE ACFT AND WAS SUPPOSED TO TAXI ACROSS RWY 29 AT SDF. FOLLOWING THE PIC'S TAXI DIRECTIONS, HE TURNED L AND TAXIED ONTO THE RWY INSTEAD OF XING IT FIRST. FO DID NOT HAVE ARPT CHART OUT. PIC WAS NOT WATCHING. CTLR DIRECTED ACFT OFF THE RWY.

Narrative: AFTER CLRING RWY 17 AT SDF, ACFT WAS CLRED 'TO THE RAMP.' BECAUSE SDF IS AN ARPT FREQUENTLY USED BY THE COMPANY, PIC IN R SEAT TOLD SIC IN L SEAT THAT TAXI RTE WOULD INVOLVE 'A L TURN, THEN A R TURN.' ARPT DIAGRAM WAS ATTACHED TO COPLT'S YOKE. THE REQUIRED PIC'S INTENDED TAXI RTE INVOLVED XING APCH END OF RWY 29 THEN TURNING L ON TXWY TO PARALLEL RWY 29 FOR SHORT DISTANCE, THEN R TURN ON TXWY TO PARALLEL RWY 35 TO RAMP. APCHING RWY 29, PIC (IN R SEAT) CALLED 'CLR R,' SIC CALLED 'CLR L.' PIC THEN DIRECTED ATTN INSIDE COCKPIT TO COMPLETE AFTER LNDG CHKLIST. AFTER SEVERAL SECONDS, GND CTL TOLD ACFT TO 'HOLD SHORT OF RWY 35,' THEN 'MAKE 180 DEG TURN, TAXI BACK TO CLR RWY 15 TXWY G(?).' PIC LOOKED UP AND DISCOVERED THAT SIC HAD TURNED L ONTO RWY 29, INSTEAD OF XING RWY 17. ACFT COMPLIED WITH GND CTLR'S INSTRUCTIONS. NO CONFLICTS NOTED. BOTH PLTS NEED TO BE HEADS OUT OF COCKPIT APCHING ANY TXWY/RWY INTXN. DO NOT ASSUME PLT AT CTLS IS FAMILIAR WITH ARPT. EVEN IN A SMALL COCKPIT, BOTH PLTS SHOULD HAVE OWN CHARTS. ESPECIALLY CRITICAL IN HIGH WORKLOAD ENVIRONMENT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.