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Confusing clearance and worn hold short line markings result in go around by approaching traffic at stl when approach area to runway 12L is entered by taxiing aircraft.
| Attributes | |
| ACN | 463170 |
| Time | |
| Date | 200002 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : stl.airport |
| State Reference | MO |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tower : stl.tower |
| Operator | common carrier : air carrier |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : stl.tower |
| Make Model Name | ATR Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | landing : go around |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 280 flight time total : 9500 flight time type : 1200 |
| ASRS Report | 463170 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : commercial pilot : instrument |
| Events | |
| Anomaly | incursion : runway non adherence : clearance |
| Independent Detector | other controllerb other flight crewa |
| Resolutory Action | flight crew : executed go around |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Airport ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| Airport | markings : stl.airport signage : stl.airport |
Narrative:
Taxiing from ramp to runway 12R, told by ground to taxi via runway 6 up to and hold short of runway 12L. From our position it was confusing as to exactly how to get there. Asked ground which way to taxi. She told us how to approach runway 12L on runway 6 and to hold short of runway 12L. Airport plan does not show hold short line on runway and runway 12L does not intersect runway 6 -- the clrway does. While taxiing down runway 6, noticed hold short line coming up. Put on brakes at the same time tower told us to hold short. Stopped aircraft just so nosewheel was over line and told tower we were over line. An ATR was told to go around. The hold short line is worn, with very light yellow paint. Runway 12L doesn't appear to intersect runway 6 on the airport chart. Ground was vague on instructions. The hold short line is 150-200 ft short of clrway for runway 12L.
Original NASA ASRS Text
Title: CONFUSING CLRNC AND WORN HOLD SHORT LINE MARKINGS RESULT IN GAR BY APCHING TFC AT STL WHEN APCH AREA TO RWY 12L IS ENTERED BY TAXIING ACFT.
Narrative: TAXIING FROM RAMP TO RWY 12R, TOLD BY GND TO TAXI VIA RWY 6 UP TO AND HOLD SHORT OF RWY 12L. FROM OUR POS IT WAS CONFUSING AS TO EXACTLY HOW TO GET THERE. ASKED GND WHICH WAY TO TAXI. SHE TOLD US HOW TO APCH RWY 12L ON RWY 6 AND TO HOLD SHORT OF RWY 12L. ARPT PLAN DOES NOT SHOW HOLD SHORT LINE ON RWY AND RWY 12L DOES NOT INTERSECT RWY 6 -- THE CLRWAY DOES. WHILE TAXIING DOWN RWY 6, NOTICED HOLD SHORT LINE COMING UP. PUT ON BRAKES AT THE SAME TIME TWR TOLD US TO HOLD SHORT. STOPPED ACFT JUST SO NOSEWHEEL WAS OVER LINE AND TOLD TWR WE WERE OVER LINE. AN ATR WAS TOLD TO GO AROUND. THE HOLD SHORT LINE IS WORN, WITH VERY LIGHT YELLOW PAINT. RWY 12L DOESN'T APPEAR TO INTERSECT RWY 6 ON THE ARPT CHART. GND WAS VAGUE ON INSTRUCTIONS. THE HOLD SHORT LINE IS 150-200 FT SHORT OF CLRWAY FOR RWY 12L.
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.