Narrative:

Misinterp of taxi instructions. The problem arose when we became rushed and distraction by our 8 min time limit to start engines and make our takeoff slot for flow control into lax. The controller instructed me to cross the runway at taxiway F, taxi full length runway 7, and hold short. I misunderstood the taxi instructions and taxied onto the active runway 7 and proceeded to back taxi down the runway to turn around and hold awaiting further takeoff instructions. The controller questioned my actions and told us to taxi down and clear the runway immediately. So, I did taxi off the runway. I'm note sure whether any aircraft had to go around. I will always verify, with the other pilot, what the taxi instructions are before ever taking an active runway. It will not happen again. Callback conversation with reporter revealed the following information: reporter states that flight crew was really rushing due to accepting the short turn around time for return to lax. The first officer was head down, programming the FMS, and did not pay attention to the taxi procedure. What controller wanted was a crossing of the runway then taxi on the parallel taxiway. Apparently, the phraseology was confusing and this may have been a new controller from the procedures used. In debrief conversation, reporter states that the crew agreed they should not have accepted such a close turnaround time and given themselves more time to get established for the departure. They have agreed never to taxi onto a runway without both crew members agreeing to the clearance. The aircraft was a falcon. Supplemental information from acn 374619: what happened was we taxied on the active runway. What we really should have done was cross the runway and taxi on the parallel taxiway and hold short at the end of that taxiway. The problem happened at the end of our taxi to the active runway, but in reality it started with our call to clearance delivery. We had just dropped off our passenger and were to continue on to lax. We called clearance delivery for clearance to lax. At this time, they informed us that there was a flow control in effect for arrs to lax. After a short time they called us back and asked if we could make a departure within 8 mins. We informed them that an 8 min time frame shouldn't pose any problem, because at that time we already had 2 engines running. Our taxi clearance was to taxi on taxiway C and to hold short of runway 15L, upon arriving at runway 15L we were cleared to cross runway 15L and to continue on taxiway C, to hold short of runway 7 at taxiway F. We taxied on taxiway C and held short of runway 7 at taxiway F. While we were holding short of runway 7 the confusion occurred. The first officer, who was in the left seat and was taxiing the aircraft, wanted a clarification of what our clearance route was. As I was explaining our clearance to her, we were clear to cross runway 7 and taxi to the end and hold. Just as we started taxi I was distraction by something in the cabin. When I looked back up we had made a right turn and were back-taxiing to the end of runway 7 instead of crossing the runway and taxiing on the parallel taxiway to hold at the end. I told the tower that we had missed our turn, and they told us we were to have crossed the runway and taxi to the end, but now continue to the end and clear the runway and hold short. We complied with their instruction. As we were leaving the runway, I saw an aircraft that I believe the tower had sent around. The problem was that the pilot taxiing the aircraft did not understand the tower's instructions, but I believe there were some other contributing factors. The fact that the crew was trying to make a time slot, the change in the routing, and the distraction of the second pilot.

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Original NASA ASRS Text

Title: FALCON 50 CPR ACFT FLC TAXIES ON RWY INSTEAD OF PARALLEL TXWY AS CLRED. CTLR DISCOVERS PROB AND GIVES CLRNC TO EXIT RWY.

Narrative: MISINTERP OF TAXI INSTRUCTIONS. THE PROB AROSE WHEN WE BECAME RUSHED AND DISTR BY OUR 8 MIN TIME LIMIT TO START ENGS AND MAKE OUR TKOF SLOT FOR FLOW CTL INTO LAX. THE CTLR INSTRUCTED ME TO CROSS THE RWY AT TXWY F, TAXI FULL LENGTH RWY 7, AND HOLD SHORT. I MISUNDERSTOOD THE TAXI INSTRUCTIONS AND TAXIED ONTO THE ACTIVE RWY 7 AND PROCEEDED TO BACK TAXI DOWN THE RWY TO TURN AROUND AND HOLD AWAITING FURTHER TKOF INSTRUCTIONS. THE CTLR QUESTIONED MY ACTIONS AND TOLD US TO TAXI DOWN AND CLR THE RWY IMMEDIATELY. SO, I DID TAXI OFF THE RWY. I'M NOTE SURE WHETHER ANY ACFT HAD TO GAR. I WILL ALWAYS VERIFY, WITH THE OTHER PLT, WHAT THE TAXI INSTRUCTIONS ARE BEFORE EVER TAKING AN ACTIVE RWY. IT WILL NOT HAPPEN AGAIN. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES THAT FLC WAS REALLY RUSHING DUE TO ACCEPTING THE SHORT TURN AROUND TIME FOR RETURN TO LAX. THE FO WAS HEAD DOWN, PROGRAMMING THE FMS, AND DID NOT PAY ATTN TO THE TAXI PROC. WHAT CTLR WANTED WAS A XING OF THE RWY THEN TAXI ON THE PARALLEL TXWY. APPARENTLY, THE PHRASEOLOGY WAS CONFUSING AND THIS MAY HAVE BEEN A NEW CTLR FROM THE PROCS USED. IN DEBRIEF CONVERSATION, RPTR STATES THAT THE CREW AGREED THEY SHOULD NOT HAVE ACCEPTED SUCH A CLOSE TURNAROUND TIME AND GIVEN THEMSELVES MORE TIME TO GET ESTABLISHED FOR THE DEP. THEY HAVE AGREED NEVER TO TAXI ONTO A RWY WITHOUT BOTH CREW MEMBERS AGREEING TO THE CLRNC. THE ACFT WAS A FALCON. SUPPLEMENTAL INFO FROM ACN 374619: WHAT HAPPENED WAS WE TAXIED ON THE ACTIVE RWY. WHAT WE REALLY SHOULD HAVE DONE WAS CROSS THE RWY AND TAXI ON THE PARALLEL TXWY AND HOLD SHORT AT THE END OF THAT TXWY. THE PROB HAPPENED AT THE END OF OUR TAXI TO THE ACTIVE RWY, BUT IN REALITY IT STARTED WITH OUR CALL TO CLRNC DELIVERY. WE HAD JUST DROPPED OFF OUR PAX AND WERE TO CONTINUE ON TO LAX. WE CALLED CLRNC DELIVERY FOR CLRNC TO LAX. AT THIS TIME, THEY INFORMED US THAT THERE WAS A FLOW CTL IN EFFECT FOR ARRS TO LAX. AFTER A SHORT TIME THEY CALLED US BACK AND ASKED IF WE COULD MAKE A DEP WITHIN 8 MINS. WE INFORMED THEM THAT AN 8 MIN TIME FRAME SHOULDN'T POSE ANY PROB, BECAUSE AT THAT TIME WE ALREADY HAD 2 ENGS RUNNING. OUR TAXI CLRNC WAS TO TAXI ON TXWY C AND TO HOLD SHORT OF RWY 15L, UPON ARRIVING AT RWY 15L WE WERE CLRED TO CROSS RWY 15L AND TO CONTINUE ON TXWY C, TO HOLD SHORT OF RWY 7 AT TXWY F. WE TAXIED ON TXWY C AND HELD SHORT OF RWY 7 AT TXWY F. WHILE WE WERE HOLDING SHORT OF RWY 7 THE CONFUSION OCCURRED. THE FO, WHO WAS IN THE L SEAT AND WAS TAXIING THE ACFT, WANTED A CLARIFICATION OF WHAT OUR CLRNC RTE WAS. AS I WAS EXPLAINING OUR CLRNC TO HER, WE WERE CLR TO CROSS RWY 7 AND TAXI TO THE END AND HOLD. JUST AS WE STARTED TAXI I WAS DISTR BY SOMETHING IN THE CABIN. WHEN I LOOKED BACK UP WE HAD MADE A R TURN AND WERE BACK-TAXIING TO THE END OF RWY 7 INSTEAD OF XING THE RWY AND TAXIING ON THE PARALLEL TXWY TO HOLD AT THE END. I TOLD THE TWR THAT WE HAD MISSED OUR TURN, AND THEY TOLD US WE WERE TO HAVE CROSSED THE RWY AND TAXI TO THE END, BUT NOW CONTINUE TO THE END AND CLR THE RWY AND HOLD SHORT. WE COMPLIED WITH THEIR INSTRUCTION. AS WE WERE LEAVING THE RWY, I SAW AN ACFT THAT I BELIEVE THE TWR HAD SENT AROUND. THE PROB WAS THAT THE PLT TAXIING THE ACFT DID NOT UNDERSTAND THE TWR'S INSTRUCTIONS, BUT I BELIEVE THERE WERE SOME OTHER CONTRIBUTING FACTORS. THE FACT THAT THE CREW WAS TRYING TO MAKE A TIME SLOT, THE CHANGE IN THE ROUTING, AND THE DISTR OF THE SECOND PLT.

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.