Narrative:

Taxi from GA to runway was at night in rain. Were instructed to follow another corporate jet. All further instructions were issued to both aircraft almost simultaneously. Runway assigned for departure was being used only for departures. At night in the rain, it became easier to focus on following the preceding jet than to try to navigation the txwys. The taxiway crossed the end of the departure runway and continued straight to the next runway. The aircraft we were following crossed the departure runway, and we followed him. We realized our mistake when we were already on the runway (the other aircraft was continuing to taxi well on the opposite side of the runway). We were the only 2 jets out there on the departure only area, so no conflict with traffic existed, but it was clear that more diligence is necessary in poor WX conditions at night.

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Original NASA ASRS Text

Title: A CE560 FLT CREW IS TOLD TO FOLLOW ACFT Y TO THE DEP RWY. ACFT Y CROSSED THE RWY, AND THE RPTR FOLLOWED.

Narrative: TAXI FROM GA TO RWY WAS AT NIGHT IN RAIN. WERE INSTRUCTED TO FOLLOW ANOTHER CORPORATE JET. ALL FURTHER INSTRUCTIONS WERE ISSUED TO BOTH ACFT ALMOST SIMULTANEOUSLY. RWY ASSIGNED FOR DEP WAS BEING USED ONLY FOR DEPS. AT NIGHT IN THE RAIN, IT BECAME EASIER TO FOCUS ON FOLLOWING THE PRECEDING JET THAN TO TRY TO NAV THE TXWYS. THE TXWY CROSSED THE END OF THE DEP RWY AND CONTINUED STRAIGHT TO THE NEXT RWY. THE ACFT WE WERE FOLLOWING CROSSED THE DEP RWY, AND WE FOLLOWED HIM. WE REALIZED OUR MISTAKE WHEN WE WERE ALREADY ON THE RWY (THE OTHER ACFT WAS CONTINUING TO TAXI WELL ON THE OPPOSITE SIDE OF THE RWY). WE WERE THE ONLY 2 JETS OUT THERE ON THE DEP ONLY AREA, SO NO CONFLICT WITH TFC EXISTED, BUT IT WAS CLR THAT MORE DILIGENCE IS NECESSARY IN POOR WX CONDITIONS AT NIGHT.

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.