BE19 pilot departed from runway 11 instead of runway 7.

Attributes
ACN	610713
Time
Date	200403
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sbp.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Sport 19
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff ground : holding ground : taxi ground : takeoff roll
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : instrument pilot : cfi pilot : commercial
Experience	flight time last 90 days : 80 flight time total : 7300 flight time type : 900
ASRS Report	610713
Person 2
Affiliation	other
Function	controller : local
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Airport Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

The airport has 2 runways that cross. I listened to ATIS and found winds calm, runway 29 in use. Wanting to depart to the east, I mistakenly asked ground for permission to taxi for runway 7. (The runway I was planning on using was actually runway 11.) I taxied to the run-up area for runway 11 and then told tower that I was holding short for runway 7, straight out departure. Tower cleared me for takeoff and as I departed tower asked me what runway I was cleared to takeoff on. I said runway 7 and tower advised I had just departed from runway 11. There was no other traffic and it did not create a safety hazard at that time. No corrective actions were needed. Human performance considerations: I failed to ensure that the runway I requested was actually the runway I wanted to takeoff from. This set up an expectation on my part that I was cleared to takeoff on a runway I don't normally use (runway 29 is usually the favored runway), inattn and overconfidence on my part caused this error.

Original NASA ASRS Text

Title: BE19 PLT DEPARTED FROM RWY 11 INSTEAD OF RWY 7.

Narrative: THE ARPT HAS 2 RWYS THAT CROSS. I LISTENED TO ATIS AND FOUND WINDS CALM, RWY 29 IN USE. WANTING TO DEPART TO THE E, I MISTAKENLY ASKED GND FOR PERMISSION TO TAXI FOR RWY 7. (THE RWY I WAS PLANNING ON USING WAS ACTUALLY RWY 11.) I TAXIED TO THE RUN-UP AREA FOR RWY 11 AND THEN TOLD TWR THAT I WAS HOLDING SHORT FOR RWY 7, STRAIGHT OUT DEP. TWR CLRED ME FOR TKOF AND AS I DEPARTED TWR ASKED ME WHAT RWY I WAS CLRED TO TKOF ON. I SAID RWY 7 AND TWR ADVISED I HAD JUST DEPARTED FROM RWY 11. THERE WAS NO OTHER TFC AND IT DID NOT CREATE A SAFETY HAZARD AT THAT TIME. NO CORRECTIVE ACTIONS WERE NEEDED. HUMAN PERFORMANCE CONSIDERATIONS: I FAILED TO ENSURE THAT THE RWY I REQUESTED WAS ACTUALLY THE RWY I WANTED TO TKOF FROM. THIS SET UP AN EXPECTATION ON MY PART THAT I WAS CLRED TO TKOF ON A RWY I DON'T NORMALLY USE (RWY 29 IS USUALLY THE FAVORED RWY), INATTN AND OVERCONFIDENCE ON MY PART CAUSED THIS ERROR.

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.