Narrative:

Our aircraft had been grounded in cysn for 2 days for maintenance. We had canceled 1 trip and were very close to canceling another, but it finally came up. We prepped for departure as normal, except the sic did not get the IFR clearance prior to startup. As the PNF, I was seated in the right seat and copied the clearance from cysn radio on the taxi. We taxied to what we thought was the hold short line for runway 6 and held there while we sorted out the clearance and programmed the FMS. Cysn radio released us for takeoff at our discretion (cysn is uncontrolled). We taxied onto runway 1, self announced a runway 6 departure and started the roll. At about 100 KTS we both realized our mistake and chose to continue what turned out to be a successful and uneventful takeoff. However, runway 1 is 500 ft shorter than our required takeoff distance for the day (2500 ft total runway available). Runway 6 is 5000 ft available. Contributing factors: maintenance delays, unfamiliar ATC procedures with regard to picking up the clearance (should have been pre-taxi). Lack of runway signage (there is none, or even painted numbers). Poor airport diagram interpretation (runway 1 and runway 6 approach ends intersect at cysn). Failure to check that HSI headings match runway heading prior to roll, particularly on an IFR departure. Our saving grace was a lack of mechanical problem, and a light, highly overpwred jet.

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Original NASA ASRS Text

Title: FLC OF A LEAR JET LR31 TOOK OFF ON A RWY OTHER THAN THE PLANNED RWY AT AN UNCTLED ARPT, YSN. THE RWY WAS SHORTER THAN REQUIRED BUT WAS SUFFICIENT FOR THE LIGHT LOAD OF THE ACFT. AFTER RECOGNIZING THEIR ERROR, THEY DECIDED TO CONTINUE THE TKOF SINCE IT APPEARED DIFFICULT TO ABORT WITHIN THE REMAINING RWY.

Narrative: OUR ACFT HAD BEEN GNDED IN CYSN FOR 2 DAYS FOR MAINT. WE HAD CANCELED 1 TRIP AND WERE VERY CLOSE TO CANCELING ANOTHER, BUT IT FINALLY CAME UP. WE PREPPED FOR DEP AS NORMAL, EXCEPT THE SIC DID NOT GET THE IFR CLRNC PRIOR TO STARTUP. AS THE PNF, I WAS SEATED IN THE R SEAT AND COPIED THE CLRNC FROM CYSN RADIO ON THE TAXI. WE TAXIED TO WHAT WE THOUGHT WAS THE HOLD SHORT LINE FOR RWY 6 AND HELD THERE WHILE WE SORTED OUT THE CLRNC AND PROGRAMMED THE FMS. CYSN RADIO RELEASED US FOR TKOF AT OUR DISCRETION (CYSN IS UNCTLED). WE TAXIED ONTO RWY 1, SELF ANNOUNCED A RWY 6 DEP AND STARTED THE ROLL. AT ABOUT 100 KTS WE BOTH REALIZED OUR MISTAKE AND CHOSE TO CONTINUE WHAT TURNED OUT TO BE A SUCCESSFUL AND UNEVENTFUL TKOF. HOWEVER, RWY 1 IS 500 FT SHORTER THAN OUR REQUIRED TKOF DISTANCE FOR THE DAY (2500 FT TOTAL RWY AVAILABLE). RWY 6 IS 5000 FT AVAILABLE. CONTRIBUTING FACTORS: MAINT DELAYS, UNFAMILIAR ATC PROCS WITH REGARD TO PICKING UP THE CLRNC (SHOULD HAVE BEEN PRE-TAXI). LACK OF RWY SIGNAGE (THERE IS NONE, OR EVEN PAINTED NUMBERS). POOR ARPT DIAGRAM INTERP (RWY 1 AND RWY 6 APCH ENDS INTERSECT AT CYSN). FAILURE TO CHK THAT HSI HDGS MATCH RWY HDG PRIOR TO ROLL, PARTICULARLY ON AN IFR DEP. OUR SAVING GRACE WAS A LACK OF MECHANICAL PROB, AND A LIGHT, HIGHLY OVERPWRED JET.

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.