Narrative:

Aircraft departing runway 22L, landing runway 22R. Initial clearance was 'taxi to holding point G1.' this took us via taxiway F, taxiway U. Just prior to turning right on taxiway G, ground control told us to 'hold position.' this left us just prior to taxiway G (eastbound on taxiway U). After waiting approximately 5 mins, ground control told us to 'continue taxiing to C1.' this erroneous instruction started the series of errors. Seeing no traffic and receiving a point other than G1, we assumed (incorrectly) we had been cleared to the holding point for runway 22L. We taxied across runway 22R at G1, joined B2, then left on taxiway Y. Midway down taxiway Y ground told us to 'line up and wait runway 22L.' as we taxied onto runway 22L, a different controller told us to hold position. She then said that we hadn't been cleared. We told her we received clearance to line up and wait runway 22L. She then said the clearance was to hold at G1. We told her we had been cleared to C1 (which we now realized was at the other end of the field). She said the runway (22R) crossing created a very dangerous situation. An aircraft was on final when we crossed runway 22R but wasn't close enough to have created a dangerous situation. We were then cleared for takeoff on runway 22L. Erroneous clearance, coupled with incorrect assumption led to this incident. Also, better to takeoff inboard and land outboard. Supplemental information from acn 474783: I believe we were inadvertently told to taxi to G1 (instead of C1), which set us up to continue taxiing to the departure runway. Or inadvertently told to go to C1 -- either the ground controllers were not talking to each other, or they were looking at the wrong aircraft.

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Original NASA ASRS Text

Title: B767 CREW HAD RWY INCURSION AT LFMN.

Narrative: ACFT DEPARTING RWY 22L, LNDG RWY 22R. INITIAL CLRNC WAS 'TAXI TO HOLDING POINT G1.' THIS TOOK US VIA TXWY F, TXWY U. JUST PRIOR TO TURNING R ON TXWY G, GND CTL TOLD US TO 'HOLD POS.' THIS LEFT US JUST PRIOR TO TXWY G (EBOUND ON TXWY U). AFTER WAITING APPROX 5 MINS, GND CTL TOLD US TO 'CONTINUE TAXIING TO C1.' THIS ERRONEOUS INSTRUCTION STARTED THE SERIES OF ERRORS. SEEING NO TFC AND RECEIVING A POINT OTHER THAN G1, WE ASSUMED (INCORRECTLY) WE HAD BEEN CLRED TO THE HOLDING POINT FOR RWY 22L. WE TAXIED ACROSS RWY 22R AT G1, JOINED B2, THEN L ON TXWY Y. MIDWAY DOWN TXWY Y GND TOLD US TO 'LINE UP AND WAIT RWY 22L.' AS WE TAXIED ONTO RWY 22L, A DIFFERENT CTLR TOLD US TO HOLD POS. SHE THEN SAID THAT WE HADN'T BEEN CLRED. WE TOLD HER WE RECEIVED CLRNC TO LINE UP AND WAIT RWY 22L. SHE THEN SAID THE CLRNC WAS TO HOLD AT G1. WE TOLD HER WE HAD BEEN CLRED TO C1 (WHICH WE NOW REALIZED WAS AT THE OTHER END OF THE FIELD). SHE SAID THE RWY (22R) XING CREATED A VERY DANGEROUS SIT. AN ACFT WAS ON FINAL WHEN WE CROSSED RWY 22R BUT WASN'T CLOSE ENOUGH TO HAVE CREATED A DANGEROUS SIT. WE WERE THEN CLRED FOR TKOF ON RWY 22L. ERRONEOUS CLRNC, COUPLED WITH INCORRECT ASSUMPTION LED TO THIS INCIDENT. ALSO, BETTER TO TKOF INBOARD AND LAND OUTBOARD. SUPPLEMENTAL INFO FROM ACN 474783: I BELIEVE WE WERE INADVERTENTLY TOLD TO TAXI TO G1 (INSTEAD OF C1), WHICH SET US UP TO CONTINUE TAXIING TO THE DEP RWY. OR INADVERTENTLY TOLD TO GO TO C1 -- EITHER THE GND CTLRS WERE NOT TALKING TO EACH OTHER, OR THEY WERE LOOKING AT THE WRONG ACFT.

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.