Unauthorized takeoff, wrong runway takeoff.

Attributes
ACN	180480
Time
Date	199106
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bet
State Reference	AK
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Small Aircraft, High Wing, 1 Eng, Retractable Gear
Flight Phase	climbout : takeoff ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : cfi pilot : instrument
Experience	flight time total : 1700
ASRS Report	180480
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	incursion : runway non adherence : clearance non adherence : far
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
Airport	other physical facility

Narrative:

I departed on runway 18 from bet. For some reason I had a 'mind-set' that departing and arriving traffic was using runway 18. Tower informed me that I had departed the wrong runway.

Original NASA ASRS Text

Title: UNAUTH TKOF, WRONG RWY TKOF.

Narrative: I DEPARTED ON RWY 18 FROM BET. FOR SOME REASON I HAD A 'MIND-SET' THAT DEPARTING AND ARRIVING TFC WAS USING RWY 18. TWR INFORMED ME THAT I HAD DEPARTED THE WRONG RWY.

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.