Narrative:

Push off gate 2 mins early on a line check. Knew that we were likely to get the short taxi to runway 17R, so we were set up for that runway. No count from the flight attendants, so we had to call them. Got the count and the numbers in as we approached spot X, but lost more time as the line check captain started discussing the change to the former requirement that we enter mac from the ACARS takeoff numbers. Checked in with a very busy ground controller and told 'taxi straight ahead for runway 17R and switch tower.' read that back and told him that we would need a min. He replied 'roger.' told the captain I was going heads down and dialed up tower. Was feeling lots of time pressure as we still had takeoff checklist to do and we were near the hold short. Line check captain later said that ground switched us to runway 17L just before we switched off frequency. Neither the captain nor myself heard that and we never responded to that call. Tower said to switch back to ground. We did and they gave us taxi to runway 17L instructions then said 'stop.' we did so slightly into the cs and taxiway M intersection and watched with some concern as a B737 taxied in front of us on taxiway M. Ground was calling him and got a response after he passed us. Supplemental information from acn 594755: ground control (121.85) switched us to tower frequency 133.3. Right before switching ground issued a taxi clearance to runway 17L via taxiway M and ed, but did not state a call sign. While on 133.3, tower directed us to return to ground frequency. At this time we were on cs just encroaching on taxiway M. To our right taxiing northbound on taxiway M was an air carrier flight. They appeared to be taxiing at a fast pace. Ground directed them to give way to our aircraft and directed us to proceed to runway 17L via taxiway M and ed. They did not slow and proceeded to pass us even though the nose of our aircraft was clearly on taxiway M. The wingtip passed within approximately 7 ft of our aircraft. The nosewheel of that flight was clearly and well off to the right of the taxiway centerline. We waited for them to pass then proceeded to runway 17L without incident. Ground control told them that he had called them 3 times to give way. They responded that his xmissions had been blocked.

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Original NASA ASRS Text

Title: GND CONFLICT BTWN 2 TAXIING B737 DURING HIGH ARPT ACTIVITY AT DEN, CO.

Narrative: PUSH OFF GATE 2 MINS EARLY ON A LINE CHK. KNEW THAT WE WERE LIKELY TO GET THE SHORT TAXI TO RWY 17R, SO WE WERE SET UP FOR THAT RWY. NO COUNT FROM THE FLT ATTENDANTS, SO WE HAD TO CALL THEM. GOT THE COUNT AND THE NUMBERS IN AS WE APCHED SPOT X, BUT LOST MORE TIME AS THE LINE CHK CAPT STARTED DISCUSSING THE CHANGE TO THE FORMER REQUIREMENT THAT WE ENTER MAC FROM THE ACARS TKOF NUMBERS. CHKED IN WITH A VERY BUSY GND CTLR AND TOLD 'TAXI STRAIGHT AHEAD FOR RWY 17R AND SWITCH TWR.' READ THAT BACK AND TOLD HIM THAT WE WOULD NEED A MIN. HE REPLIED 'ROGER.' TOLD THE CAPT I WAS GOING HEADS DOWN AND DIALED UP TWR. WAS FEELING LOTS OF TIME PRESSURE AS WE STILL HAD TKOF CHKLIST TO DO AND WE WERE NEAR THE HOLD SHORT. LINE CHK CAPT LATER SAID THAT GND SWITCHED US TO RWY 17L JUST BEFORE WE SWITCHED OFF FREQ. NEITHER THE CAPT NOR MYSELF HEARD THAT AND WE NEVER RESPONDED TO THAT CALL. TWR SAID TO SWITCH BACK TO GND. WE DID AND THEY GAVE US TAXI TO RWY 17L INSTRUCTIONS THEN SAID 'STOP.' WE DID SO SLIGHTLY INTO THE CS AND TXWY M INTXN AND WATCHED WITH SOME CONCERN AS A B737 TAXIED IN FRONT OF US ON TXWY M. GND WAS CALLING HIM AND GOT A RESPONSE AFTER HE PASSED US. SUPPLEMENTAL INFO FROM ACN 594755: GND CTL (121.85) SWITCHED US TO TWR FREQ 133.3. RIGHT BEFORE SWITCHING GND ISSUED A TAXI CLRNC TO RWY 17L VIA TXWY M AND ED, BUT DID NOT STATE A CALL SIGN. WHILE ON 133.3, TWR DIRECTED US TO RETURN TO GND FREQ. AT THIS TIME WE WERE ON CS JUST ENCROACHING ON TXWY M. TO OUR R TAXIING NBOUND ON TXWY M WAS AN ACR FLT. THEY APPEARED TO BE TAXIING AT A FAST PACE. GND DIRECTED THEM TO GIVE WAY TO OUR ACFT AND DIRECTED US TO PROCEED TO RWY 17L VIA TXWY M AND ED. THEY DID NOT SLOW AND PROCEEDED TO PASS US EVEN THOUGH THE NOSE OF OUR ACFT WAS CLRLY ON TXWY M. THE WINGTIP PASSED WITHIN APPROX 7 FT OF OUR ACFT. THE NOSEWHEEL OF THAT FLT WAS CLRLY AND WELL OFF TO THE R OF THE TXWY CTRLINE. WE WAITED FOR THEM TO PASS THEN PROCEEDED TO RWY 17L WITHOUT INCIDENT. GND CTL TOLD THEM THAT HE HAD CALLED THEM 3 TIMES TO GIVE WAY. THEY RESPONDED THAT HIS XMISSIONS HAD BEEN BLOCKED.

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.