Cleared to hold short of runway 32, didn't.

Attributes
ACN	102834
Time
Date	198901
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ugn
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 2 Eng, Retractable Gear
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 100 flight time total : 2249 flight time type : 125
ASRS Report	102834
Person 2
Affiliation	government : faa
Function	controller : ground
Qualification	controller : non radar
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Ground cleared me to taxi from the main/passenger ramp to the north ramp via alpha hold at 32. The active in use was 23 and as I was being given the clearance I was watching the activity on 23. I taxied on alpha and crossed 32. The controller called my attention to the fact that I had crossed 32 after being told to hold at 32. My response was that I had heard him say 32, but had transposed 23 and 32 in my mind as I taxied. After this incident I have begun writing down even simple ground instructions so as to be able to have something better than memory and similar runway numbers for reminding me.

Original NASA ASRS Text

Title: CLEARED TO HOLD SHORT OF RWY 32, DIDN'T.

Narrative: GND CLRED ME TO TAXI FROM THE MAIN/PAX RAMP TO THE NORTH RAMP VIA ALPHA HOLD AT 32. THE ACTIVE IN USE WAS 23 AND AS I WAS BEING GIVEN THE CLRNC I WAS WATCHING THE ACTIVITY ON 23. I TAXIED ON ALPHA AND CROSSED 32. THE CTLR CALLED MY ATTN TO THE FACT THAT I HAD CROSSED 32 AFTER BEING TOLD TO HOLD AT 32. MY RESPONSE WAS THAT I HAD HEARD HIM SAY 32, BUT HAD TRANSPOSED 23 AND 32 IN MY MIND AS I TAXIED. AFTER THIS INCIDENT I HAVE BEGUN WRITING DOWN EVEN SIMPLE GND INSTRUCTIONS SO AS TO BE ABLE TO HAVE SOMETHING BETTER THAN MEMORY AND SIMILAR RWY NUMBERS FOR REMINDING ME.

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.