Narrative:

While taxiing to runway 25R on taxiway B at lax, I thought I heard the tower controller give us a clearance to 'position and hold full length runway 25R.' we were passing taxiway F when we were given the alleged clearance. I taxied just beyond the hold short line but not on the runway and stopped. First officer questioned whether or not we were cleared on the runway. I also saw an airplane on about a 4 mi final for runway 25R. After questioning our clearance with tower, we were told we weren't given a clearance to position and hold, and tower directed the airplane on final to go around. We were finally given permission to take off from our present position and continued to dfw without any further incident. We were given a number to call lax tower and when I spoke to the tower individual, I was told he reviewed the conversation on tape. He said that no instructions were given to position and hold. I obviously misinterped the clearance. In retrospect, I will be much more vigilant to all clrncs and will doublechk all clrncs associated with a runway. I do think the tower controller could have helped out a lot by including a hold short of runway 25R in his original clearance. The lax tower individual agreed that it should be an item to look into.

Related reports:

Google
 

Original NASA ASRS Text

Title: B767 CAPT TAXIED PAST HOLD LINE MISTAKENLY BELIEVING THAT HE HAD BEEN CLRED INTO POS AND HOLD. ANOTHER ACFT WAS SENT AROUND.

Narrative: WHILE TAXIING TO RWY 25R ON TXWY B AT LAX, I THOUGHT I HEARD THE TWR CTLR GIVE US A CLRNC TO 'POS AND HOLD FULL LENGTH RWY 25R.' WE WERE PASSING TXWY F WHEN WE WERE GIVEN THE ALLEGED CLRNC. I TAXIED JUST BEYOND THE HOLD SHORT LINE BUT NOT ON THE RWY AND STOPPED. FO QUESTIONED WHETHER OR NOT WE WERE CLRED ON THE RWY. I ALSO SAW AN AIRPLANE ON ABOUT A 4 MI FINAL FOR RWY 25R. AFTER QUESTIONING OUR CLRNC WITH TWR, WE WERE TOLD WE WEREN'T GIVEN A CLRNC TO POS AND HOLD, AND TWR DIRECTED THE AIRPLANE ON FINAL TO GO AROUND. WE WERE FINALLY GIVEN PERMISSION TO TAKE OFF FROM OUR PRESENT POS AND CONTINUED TO DFW WITHOUT ANY FURTHER INCIDENT. WE WERE GIVEN A NUMBER TO CALL LAX TWR AND WHEN I SPOKE TO THE TWR INDIVIDUAL, I WAS TOLD HE REVIEWED THE CONVERSATION ON TAPE. HE SAID THAT NO INSTRUCTIONS WERE GIVEN TO POS AND HOLD. I OBVIOUSLY MISINTERPED THE CLRNC. IN RETROSPECT, I WILL BE MUCH MORE VIGILANT TO ALL CLRNCS AND WILL DOUBLECHK ALL CLRNCS ASSOCIATED WITH A RWY. I DO THINK THE TWR CTLR COULD HAVE HELPED OUT A LOT BY INCLUDING A HOLD SHORT OF RWY 25R IN HIS ORIGINAL CLRNC. THE LAX TWR INDIVIDUAL AGREED THAT IT SHOULD BE AN ITEM TO LOOK INTO.

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.