An small aircraft pilot took off on the wrong runway.

Attributes
ACN	255924
Time
Date	199310
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : efd
State Reference	TX
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
Flight Phase	climbout : takeoff
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 54 flight time total : 215 flight time type : 35
ASRS Report	255924
Events
Anomaly	incursion : runway non adherence : clearance other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Assigned runway 35L for takeoff. Departed runway 4. The beginning of runway 4 is used as taxiway to 35L. Runup (stop short) is performed before reaching runway 4. After I taxied on to runway 4, I started takeoff. I checked directional gyro (dg) on roll and realized that something was wrong -- thought I had not set dg during runup. Should have aborted takeoff.

Original NASA ASRS Text

Title: AN SMA PLT TOOK OFF ON THE WRONG RWY.

Narrative: ASSIGNED RWY 35L FOR TKOF. DEPARTED RWY 4. THE BEGINNING OF RWY 4 IS USED AS TXWY TO 35L. RUNUP (STOP SHORT) IS PERFORMED BEFORE REACHING RWY 4. AFTER I TAXIED ON TO RWY 4, I STARTED TKOF. I CHKED DIRECTIONAL GYRO (DG) ON ROLL AND REALIZED THAT SOMETHING WAS WRONG -- THOUGHT I HAD NOT SET DG DURING RUNUP. SHOULD HAVE ABORTED TKOF.

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.