AC90 taxiing for takeoff at oun enters runway 3-21 without clearance.

Attributes
ACN	612838
Time
Date	200403
Day	Tue
Place
Locale Reference	airport : oun.airport
State Reference	OK
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : zzz.tower
Operator	general aviation : personal
Make Model Name	Rockwell Aero Commander Twin Turboprop Undifferentiated or Other
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 90 flight time total : 11000 flight time type : 2000
ASRS Report	612838
Person 2
Affiliation	other
Function	controller : ground
Events
Anomaly	incursion : runway non adherence : clearance non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Supplementary
Problem Areas	Airport Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were taxiing out to runway 3 and missed seeing the taxiway and went onto runway 3/21. Immediately reported the digression to ground control who directed us off. No traffic conflict existed, fortunately.

Original NASA ASRS Text

Title: AC90 TAXIING FOR TKOF AT OUN ENTERS RWY 3-21 WITHOUT CLRNC.

Narrative: WE WERE TAXIING OUT TO RWY 3 AND MISSED SEEING THE TXWY AND WENT ONTO RWY 3/21. IMMEDIATELY RPTED THE DIGRESSION TO GND CTL WHO DIRECTED US OFF. NO TFC CONFLICT EXISTED, FORTUNATELY.

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.