A C172 pilot inadvertently taxied onto a runway without a clearance.

Attributes
ACN	577366
Time
Date	200303
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pwk.airport
State Reference	IL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 50 flight time total : 700 flight time type : 650
ASRS Report	577366
Person 2
Affiliation	government : faa
Function	controller : ground
Events
Anomaly	incursion : runway non adherence : clearance non adherence : far
Independent Detector	other flight crewa
Resolutory Action	flight crew : became reoriented
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Airport ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Taxied via txwys Y, D to runway 34, turned inadvertently onto runway 30/12 for 20 ft and stopped, turned and exited onto taxiway D. Have been to palwaukee airport for 2 yrs with no mishaps. I have studied the airport diagram with intention not to repeat incident.

Original NASA ASRS Text

Title: A C172 PLT INADVERTENTLY TAXIED ONTO A RWY WITHOUT A CLRNC.

Narrative: TAXIED VIA TXWYS Y, D TO RWY 34, TURNED INADVERTENTLY ONTO RWY 30/12 FOR 20 FT AND STOPPED, TURNED AND EXITED ONTO TXWY D. HAVE BEEN TO PALWAUKEE ARPT FOR 2 YRS WITH NO MISHAPS. I HAVE STUDIED THE ARPT DIAGRAM WITH INTENTION NOT TO REPEAT INCIDENT.

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.