Narrative:

While on a visual approach to runway 4L at bos at approximately 500 ft AGL; ATC instructed us to go-around. Just prior to the go-around we observed an [air carrier] aircraft cross the hold short line at runway 4L (our landing runway). Simultaneously ATC commanded the aircraft to 'stop'. They then commanded us to go-around.we executed the go-around maneuver and returned to the same runway for a normal landing. After arriving at the gate I notified dispatch and maintenance control of the go-around and entered the event into the logbook.

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Original NASA ASRS Text

Title: CRJ-200 flight crew reported executing a go-around when an air carrier aircraft taxied past the hold short line on Runway 4L at BOS.

Narrative: While on a visual approach to runway 4L at BOS at approximately 500 ft AGL; ATC instructed us to go-around. Just prior to the go-around we observed an [air carrier] aircraft cross the hold short line at runway 4L (our landing runway). Simultaneously ATC commanded the aircraft to 'STOP'. They then commanded us to go-around.We executed the go-around maneuver and returned to the same runway for a normal landing. After arriving at the gate I notified dispatch and maintenance control of the go-around and entered the event into the logbook.

Data retrieved from NASA's ASRS site 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.