Small aircraft crosses hold line when cleared hold short.

Attributes
ACN	194987
Time
Date	199111
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ont
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	ground : holding ground other : taxi
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 40 flight time total : 5000 flight time type : 25
ASRS Report	194987
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was cleared to taxi to runway 26L from FBO. I inadvertently crossed hold line by the width of my aircraft. Tower (ground control) advised me to return behind line and hold. After takeoff tower controller asked me why I did what I did. He further stated it has happened regularly and they are trying to figure out what is confusing pilots. There is something confusing about that intersection and the clearance given me. Callback conversation with reporter revealed the following information: reporter states, clearance did not make sense as one taxies out and entire area is black top, not as depicted on airport diagram. No real specific indication of where to taxi. So long ago that he doesn't really remember specifics. He would like to know the answer of 'why?' himself.

Original NASA ASRS Text

Title: SMA CROSSES HOLD LINE WHEN CLRED HOLD SHORT.

Narrative: I WAS CLRED TO TAXI TO RWY 26L FROM FBO. I INADVERTENTLY CROSSED HOLD LINE BY THE WIDTH OF MY ACFT. TWR (GND CTL) ADVISED ME TO RETURN BEHIND LINE AND HOLD. AFTER TKOF TWR CTLR ASKED ME WHY I DID WHAT I DID. HE FURTHER STATED IT HAS HAPPENED REGULARLY AND THEY ARE TRYING TO FIGURE OUT WHAT IS CONFUSING PLTS. THERE IS SOMETHING CONFUSING ABOUT THAT INTXN AND THE CLRNC GIVEN ME. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATES, CLRNC DID NOT MAKE SENSE AS ONE TAXIES OUT AND ENTIRE AREA IS BLACK TOP, NOT AS DEPICTED ON ARPT DIAGRAM. NO REAL SPECIFIC INDICATION OF WHERE TO TAXI. SO LONG AGO THAT HE DOESN'T REALLY REMEMBER SPECIFICS. HE WOULD LIKE TO KNOW THE ANSWER OF 'WHY?' HIMSELF.

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.