Cessna C206 pilot takeoff on the taxiway vice the runway at bfl.

Attributes
ACN	715164
Time
Date	200610
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bfl.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Operator	general aviation : personal
Make Model Name	Cessna Stationair/Turbo Stationair 6
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff ground : taxi
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 300 flight time total : 6500 flight time type : 6400
ASRS Report	715164
Events
Anomaly	incursion : taxiway non adherence : far non adherence : clearance
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Airport
Primary Problem	Flight Crew Human Performance

Narrative:

After receiving taxi clearance; I taxied to the departure end of runway/displaced threshold runway 30R. I received takeoff clearance and departed on the adjacent taxiway. Just after liftoff; I noted my error. I contacted tower and apologized as I maneuvered over to runway 30R. There were no other ground traffic movements in the area. Factors that contributed to my error were my inattn; dusk lighting; the departure point was at the south end of the displaced threshold which is approximately 3700 ft from the runway threshold. I did not expect to see hold markings; the taxiway was as wide as most runways I take off from; and runway/taxiway markings that I did not notice or see. The tower controller may have been busy with other tasks and did not notice my wrong location for departure.

Original NASA ASRS Text

Title: CESSNA C206 PLT TKOF ON THE TXWY VICE THE RWY AT BFL.

Narrative: AFTER RECEIVING TAXI CLRNC; I TAXIED TO THE DEP END OF RWY/DISPLACED THRESHOLD RWY 30R. I RECEIVED TKOF CLRNC AND DEPARTED ON THE ADJACENT TXWY. JUST AFTER LIFTOFF; I NOTED MY ERROR. I CONTACTED TWR AND APOLOGIZED AS I MANEUVERED OVER TO RWY 30R. THERE WERE NO OTHER GND TFC MOVEMENTS IN THE AREA. FACTORS THAT CONTRIBUTED TO MY ERROR WERE MY INATTN; DUSK LIGHTING; THE DEP POINT WAS AT THE S END OF THE DISPLACED THRESHOLD WHICH IS APPROX 3700 FT FROM THE RWY THRESHOLD. I DID NOT EXPECT TO SEE HOLD MARKINGS; THE TXWY WAS AS WIDE AS MOST RWYS I TAKE OFF FROM; AND RWY/TXWY MARKINGS THAT I DID NOT NOTICE OR SEE. THE TWR CTLR MAY HAVE BEEN BUSY WITH OTHER TASKS AND DID NOT NOTICE MY WRONG LOCATION FOR DEP.

Data retrieved from NASA's ASRS site as of January 2009 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.