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B737 departure from ord cleared for takeoff runway 4L; aborted after observing traffic crossing departure runway at taxiway H; operational error reported.
| Attributes | |
| ACN | 691135 |
| Time | |
| Date | 200603 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : takeoff roll |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : ord.tower |
| Flight Phase | ground : taxi |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 213 flight time total : 8500 flight time type : 2000 |
| ASRS Report | 691135 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : ground less severe non adherence : required legal separation |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : investigated |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure Operational Error |
Narrative:
Taxiing into position on runway 4L; we received takeoff clearance. As I handed control over to the first officer and glanced down at the push-to-talk switch to acknowledge takeoff clearance; I heard the first officer state concern over another aircraft. The first officer stopped the plane and as I looked up I saw an aircraft cross runway 4L on taxiway H in front of us. We were never above a taxi speed and there was never a threat of collision. I told tower we were aborting the takeoff and was told to cancel takeoff clearance. After an aircraft landed on runway 9L; we received takeoff clearance.
Original NASA ASRS Text
Title: B737 DEP FROM ORD CLRED FOR TKOF RWY 4L; ABORTED AFTER OBSERVING TFC XING DEP RWY AT TXWY H; OPERROR RPTED.
Narrative: TAXIING INTO POS ON RWY 4L; WE RECEIVED TKOF CLRNC. AS I HANDED CTL OVER TO THE FO AND GLANCED DOWN AT THE PUSH-TO-TALK SWITCH TO ACKNOWLEDGE TKOF CLRNC; I HEARD THE FO STATE CONCERN OVER ANOTHER ACFT. THE FO STOPPED THE PLANE AND AS I LOOKED UP I SAW AN ACFT CROSS RWY 4L ON TXWY H IN FRONT OF US. WE WERE NEVER ABOVE A TAXI SPD AND THERE WAS NEVER A THREAT OF COLLISION. I TOLD TWR WE WERE ABORTING THE TKOF AND WAS TOLD TO CANCEL TKOF CLRNC. AFTER AN ACFT LANDED ON RWY 9L; WE RECEIVED TKOF CLRNC.
Data retrieved from NASA's ASRS site as of January 2009 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.