Narrative:

After landing on runway 22L we exited the runway via taxiway P; east and held short of runway 22R at east. We were talking to tower on frequency 128.80. Tower advised to cross runway 22R on east and contact ground on frequency 121.9 once crossed. The captain taxied across runway 22R and I was contacting ground on 121.90 when we realized there was an air carrier Y coming strait at us on taxiway east. The captain stopped immediately and I tried to contact ground. Ground control was very busy and I was unable to get a response from him. I continued to try and contact ground by saying something along the lines of ground air carrier X I think our tail is still across the hold short line on runway 22R and that there was an aircraft coming strait at us from taxiway east. I believe ground still did not respond. By this time the air carrier Y was about 50 feet in front of us and still coming. I said to the captain; 'he's going to hit us.' the captain then turned on every light we had so as to have the air carrier Y stop. I yelled on the radio multiple times to 'stop!' the air carrier Y kept coming. Ground still did not respond. I then again said the air carrier Y in front of us stop you are going to hit us. A voice came on and said; 'I can see my wing I'm fine; I'm not going to hit you;' I said 'yes you are; stop!' the air carrier Y kept coming slower; but turned to cut the corner of taxiway east and B; exactly where we were sitting. By the time the air carrier Y went past us; it's front tires were about 5 feet left of the taxiway line (cutting the inside of the corner) I would calculate the winglet of the air carrier Y was about 5 feet from our front windshield. My captain kept the lights on the whole time and never moved the airplane; if he would have moved there would have been a collision. Once the air carrier Y passed I was finally able to get taxi confirmation from ground to continue to the gate.I believe the event occurred because the pilot of the air carrier Y was arrogant. This is most prevalent in my mind because of the tone of voice that was given when he said; he would not hit us. Also ground not realizing that tower had cleared us to cross and contact ground control. This is a hotspot on the airport.suggestions: ground and tower to have better communication between each other. More vigilance from pilots to not continue when another pilot advises to stop.

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Original NASA ASRS Text

Title: Air carrier First Officer reported experiencing a ground conflict during taxi-in at BOS airport.

Narrative: After landing on Runway 22L we exited the runway via Taxiway P; E and held short of Runway 22R at E. We were talking to Tower on Frequency 128.80. Tower advised to cross Runway 22R on E and contact ground on Frequency 121.9 once crossed. The Captain taxied across Runway 22R and I was contacting ground on 121.90 when we realized there was an Air Carrier Y coming strait at us on Taxiway E. The Captain stopped immediately and I tried to contact ground. Ground Control was very busy and I was unable to get a response from him. I continued to try and contact ground by saying something along the lines of ground Air Carrier X I think our tail is still across the hold short line on Runway 22R and that there was an aircraft coming strait at us from Taxiway E. I believe ground still did not respond. By this time the Air Carrier Y was about 50 feet in front of us and still coming. I said to the Captain; 'he's going to hit us.' The Captain then turned on every light we had so as to have the Air Carrier Y stop. I yelled on the radio multiple times to 'stop!' The Air Carrier Y kept coming. Ground still did not respond. I then again said the Air Carrier Y in front of us stop you are going to hit us. A voice came on and said; 'I can see my wing I'm fine; I'm not going to hit you;' I said 'yes you are; STOP!' The Air Carrier Y kept coming slower; but turned to cut the corner of Taxiway E and B; exactly where we were sitting. By the time the Air Carrier Y went past us; it's front tires were about 5 feet left of the taxiway line (cutting the inside of the corner) I would calculate the winglet of the Air Carrier Y was about 5 feet from our front windshield. My Captain kept the lights on the whole time and never moved the airplane; if he would have moved there would have been a collision. Once the Air Carrier Y passed I was finally able to get taxi confirmation from ground to continue to the gate.I believe the event occurred because the pilot of the Air Carrier Y was arrogant. This is most prevalent in my mind because of the tone of voice that was given when he said; he would not hit us. Also Ground not realizing that Tower had cleared us to cross and contact Ground Control. This is a hotspot on the airport.Suggestions: Ground and Tower to have better communication between each other. More vigilance from pilots to not continue when another pilot advises to stop.

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.