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Hard stop required by air carrier when another taxies in front of him at chicago O'hare. Aircraft were on different ground control frequencys.
| Attributes | |
| ACN | 484030 |
| Time | |
| Date | 200008 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : ord.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 484030 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : multi engine pilot : commercial |
| Events | |
| Anomaly | conflict : ground critical non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | ATC Facility ATC Human Performance Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure Operational Deviation |
Narrative:
We received taxi instructions to follow air carrier Z, txwys B, J, west to runway 4L, an rj was instructed to get between us. The rj turned off at A10. We were told to close up on air carrier Z and switch to tower. We sped up slightly to close distance on air carrier Z. As we approached A7 we noticed an air carrier Y B737 exiting their ramp area. The B737 proceeded to cross our nose at taxiway B and A7. We had to come to a rather abrupt halt. I tried to call the air carrier Y B737 to find out who had right of way but it was on a different frequency. Air carrier Y continued on A7 and turned right on taxiway T. I turned radio #2 to ord ground 121.75 and requested a discrete frequency to discuss this problem. Was told to go to 118.45. Told ground controller there that air carrier Y had cut in front of us at A7 and that we were on different frequencys. He stated that he would pull both his ground controllers aside to talk to them.
Original NASA ASRS Text
Title: HARD STOP REQUIRED BY ACR WHEN ANOTHER TAXIES IN FRONT OF HIM AT CHICAGO O'HARE. ACFT WERE ON DIFFERENT GND CTL FREQS.
Narrative: WE RECEIVED TAXI INSTRUCTIONS TO FOLLOW ACR Z, TXWYS B, J, W TO RWY 4L, AN RJ WAS INSTRUCTED TO GET BTWN US. THE RJ TURNED OFF AT A10. WE WERE TOLD TO CLOSE UP ON ACR Z AND SWITCH TO TWR. WE SPED UP SLIGHTLY TO CLOSE DISTANCE ON ACR Z. AS WE APCHED A7 WE NOTICED AN ACR Y B737 EXITING THEIR RAMP AREA. THE B737 PROCEEDED TO CROSS OUR NOSE AT TXWY B AND A7. WE HAD TO COME TO A RATHER ABRUPT HALT. I TRIED TO CALL THE ACR Y B737 TO FIND OUT WHO HAD RIGHT OF WAY BUT IT WAS ON A DIFFERENT FREQ. ACR Y CONTINUED ON A7 AND TURNED R ON TXWY T. I TURNED RADIO #2 TO ORD GND 121.75 AND REQUESTED A DISCRETE FREQ TO DISCUSS THIS PROB. WAS TOLD TO GO TO 118.45. TOLD GND CTLR THERE THAT ACR Y HAD CUT IN FRONT OF US AT A7 AND THAT WE WERE ON DIFFERENT FREQS. HE STATED THAT HE WOULD PULL BOTH HIS GND CTLRS ASIDE TO TALK TO THEM.
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.