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No incident--reporter is alerting ASRS to the potential for an inadvertent runway incursion in low visibility conditions.
| Attributes | |
| ACN | 120713 |
| Time | |
| Date | 198908 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : sfo |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport, High Wing, 2 Turboprop Eng |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 185 flight time total : 14000 |
| ASRS Report | 120713 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | incursion : runway |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Airport |
| Air Traffic Incident | other |
| Situations | |
| Airport | other physical facility |
Narrative:
In reduced visibility at ord on outer taxiway, heading clockwise (eastbound), it is possible to continue taxi onto runway 9L thinking you are still on the outer. This is normally called the circle. Yellow taxi lines lead onto 9L on the high speed for 27R. This is probably not a problem for pilots familiar with ord. However, a more distinct marking system or lights to make certain no one transgresses 9L-27R. Note: inner taxiway has green leading lights on centerline.
Original NASA ASRS Text
Title: NO INCIDENT--REPORTER IS ALERTING ASRS TO THE POTENTIAL FOR AN INADVERTENT RWY INCURSION IN LOW VISIBILITY CONDITIONS.
Narrative: IN REDUCED VISIBILITY AT ORD ON OUTER TXWY, HDG CLOCKWISE (EBND), IT IS POSSIBLE TO CONTINUE TAXI ONTO RWY 9L THINKING YOU ARE STILL ON THE OUTER. THIS IS NORMALLY CALLED THE CIRCLE. YELLOW TAXI LINES LEAD ONTO 9L ON THE HIGH SPD FOR 27R. THIS IS PROBABLY NOT A PROB FOR PLTS FAMILIAR WITH ORD. HOWEVER, A MORE DISTINCT MARKING SYS OR LIGHTS TO MAKE CERTAIN NO ONE TRANSGRESSES 9L-27R. NOTE: INNER TXWY HAS GREEN LEADING LIGHTS ON CENTERLINE.
Data retrieved from NASA's ASRS site as of August 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.