Narrative:

We were told to hold short of the active runway, soon after that the tower gave a taxi into position and hold clearance to my first officer, repeated back the clearance and I started across the hold short line, but still clear of the runway. Then another aircraft called and said we took his clearance so we held short. The other plane had a very similar tail number to ours. The other plane was the one that noticed the error. I don't believe the tower controller noticed the error. Another plane was on approach 1 1/2 mi final and landed without incident. I believe that we were expecting a clearance at that time and when a similar tail number was called, we were expecting it to be ours. In the future we should try to be sure about receiving a clearance and reading back our whole tail number instead of just the last three numbers.

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Original NASA ASRS Text

Title: ACFT HOLDING SHORT AWAITING CLRNC INTO POS. FO HEARD A CLRNC FOR POS AND HOLD AND REPLIED CLRED INTO POS. ANOTHER ACFT WITH A SIMILAR CALL SIGN SAID THE CLRNC WAS FOR THEM. TWR CTLR SORTED THINGS OUT AFTER ACFT ON FINAL LANDED.

Narrative: WE WERE TOLD TO HOLD SHORT OF THE ACTIVE RWY, SOON AFTER THAT THE TWR GAVE A TAXI INTO POS AND HOLD CLRNC TO MY FO, REPEATED BACK THE CLRNC AND I STARTED ACROSS THE HOLD SHORT LINE, BUT STILL CLR OF THE RWY. THEN ANOTHER ACFT CALLED AND SAID WE TOOK HIS CLRNC SO WE HELD SHORT. THE OTHER PLANE HAD A VERY SIMILAR TAIL NUMBER TO OURS. THE OTHER PLANE WAS THE ONE THAT NOTICED THE ERROR. I DON'T BELIEVE THE TWR CTLR NOTICED THE ERROR. ANOTHER PLANE WAS ON APCH 1 1/2 MI FINAL AND LANDED WITHOUT INCIDENT. I BELIEVE THAT WE WERE EXPECTING A CLRNC AT THAT TIME AND WHEN A SIMILAR TAIL NUMBER WAS CALLED, WE WERE EXPECTING IT TO BE OURS. IN THE FUTURE WE SHOULD TRY TO BE SURE ABOUT RECEIVING A CLRNC AND READING BACK OUR WHOLE TAIL NUMBER INSTEAD OF JUST THE LAST THREE NUMBERS.

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.