Narrative:

While holding short of runway 9 at taxiway west, we thought we were cleared into position, and read back to tower 'position and hold.' tower then stated that he had told an air carrier Y with a similar call sign into position, and not us. Tower then cleared us into position. The flight was continued without event. A major contributing factor was a similar sounding call sign.

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Original NASA ASRS Text

Title: DO328 AT BOS ENTERED RWY WITHOUT ATC CLRNC.

Narrative: WHILE HOLDING SHORT OF RWY 9 AT TXWY W, WE THOUGHT WE WERE CLRED INTO POS, AND READ BACK TO TWR 'POS AND HOLD.' TWR THEN STATED THAT HE HAD TOLD AN ACR Y WITH A SIMILAR CALL SIGN INTO POS, AND NOT US. TWR THEN CLRED US INTO POS. THE FLT WAS CONTINUED WITHOUT EVENT. A MAJOR CONTRIBUTING FACTOR WAS A SIMILAR SOUNDING CALL SIGN.

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.