<< >> NASA ASRS Report 633803, October 2004

CE560 crew was instructed to proceed on taxiway C, hold short of taxiway left. Flight crew proceeded beyond taxiway left.

Attributes
ACN	633803
Time
Date	200410
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sna.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Citation Excel
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 6600 flight time type : 1000
ASRS Report	633803
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	incursion : taxiway non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

We were told to hold short of taxiway left in sna. The taxiway is often used to keep people from taxiing in the way of the airlines pushing off their gates. The taxiway needs to have more apparent signs. We need to be more aware of our taxi instructions. Callback conversation with reporter revealed the following information: the pilot stated that the actual end of taxiway C appeared to not end at taxiway left but beyond taxiway left. Because the crew was looking for the end of taxiway C and the intersection of taxiway left they simply missed the taxiway left sign. The pilots realized simultaneously with ground control what had occurred and as the crew called ground, ground asked them if they realized that they had rolled through taxiway left. The pilot told me he later called ground control on the landline again apologizing for his lapse. Ground indicated they were not pursuing action. When I asked if the sign or taxiway markings were confusing or not salient enough for the environment, he said that he was not sure. In his mind he did not remember seeing the taxiway left sign.

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Original NASA ASRS Text

Title: CE560 CREW WAS INSTRUCTED TO PROCEED ON TXWY C, HOLD SHORT OF TXWY L. FLT CREW PROCEEDED BEYOND TXWY L.

Narrative: WE WERE TOLD TO HOLD SHORT OF TXWY L IN SNA. THE TXWY IS OFTEN USED TO KEEP PEOPLE FROM TAXIING IN THE WAY OF THE AIRLINES PUSHING OFF THEIR GATES. THE TXWY NEEDS TO HAVE MORE APPARENT SIGNS. WE NEED TO BE MORE AWARE OF OUR TAXI INSTRUCTIONS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE PLT STATED THAT THE ACTUAL END OF TXWY C APPEARED TO NOT END AT TXWY L BUT BEYOND TXWY L. BECAUSE THE CREW WAS LOOKING FOR THE END OF TXWY C AND THE INTXN OF TXWY L THEY SIMPLY MISSED THE TXWY L SIGN. THE PLTS REALIZED SIMULTANEOUSLY WITH GND CTL WHAT HAD OCCURRED AND AS THE CREW CALLED GND, GND ASKED THEM IF THEY REALIZED THAT THEY HAD ROLLED THROUGH TXWY L. THE PLT TOLD ME HE LATER CALLED GND CTL ON THE LANDLINE AGAIN APOLOGIZING FOR HIS LAPSE. GND INDICATED THEY WERE NOT PURSUING ACTION. WHEN I ASKED IF THE SIGN OR TXWY MARKINGS WERE CONFUSING OR NOT SALIENT ENOUGH FOR THE ENVIRONMENT, HE SAID THAT HE WAS NOT SURE. IN HIS MIND HE DID NOT REMEMBER SEEING THE TXWY L SIGN.

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.