Small aircraft pilot took off on wrong runway.

Attributes
ACN	542648
Time
Date	200203
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : opf.airport
State Reference	FL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff ground : position and hold ground : taxi ground : takeoff roll
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : commercial
Experience	flight time last 90 days : 9 flight time total : 289 flight time type : 7.6
ASRS Report	542648
Person 2
Affiliation	government : faa
Function	controller : local
Events
Anomaly	incursion : taxiway 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	ATC Human Performance Airport Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation Intra Facility Coordination Failure

Narrative:

On approach to land at opf, the ATIS gave runway 9L as the runway in use, but I was offered runway 12 as the wind was more favorable for that runway. I chose runway 12 and landed. Before taxiing for departure, ATIS still gave runway 9L as the runway in use. I asked ground for taxiing instructions as I was unfamiliar to the airport. The wind was still favoring runway 12 and another aircraft had just departed runway 12. I was under the impression I was to use runway 12. I did the runup and taxied up to the hold line of runway 12 and called the tower and told them I was holding short of the active to take off to the west. I was cleared to take off. I took off from runway 12 and was about 200-300 ft off the ground when the controller notified me that I should have taken off from runway 9L and to keep clear of the departure end of runway 9L and he will call my turn to the west which he did and I continued without any further complication. On reflection, because I had been given runway 12 to land even though they were using runway 9L, and that the wind favored runway 12 also other aircraft were departing runway 12 and the taxiway they had given me led to the end of runway 12, I assumed I was to use runway 12. I should have told the controller I was holding short of runway 12 and from now on I will always quote the runway number.

Original NASA ASRS Text

Title: SMA PLT TOOK OFF ON WRONG RWY.

Narrative: ON APCH TO LAND AT OPF, THE ATIS GAVE RWY 9L AS THE RWY IN USE, BUT I WAS OFFERED RWY 12 AS THE WIND WAS MORE FAVORABLE FOR THAT RWY. I CHOSE RWY 12 AND LANDED. BEFORE TAXIING FOR DEP, ATIS STILL GAVE RWY 9L AS THE RWY IN USE. I ASKED GND FOR TAXIING INSTRUCTIONS AS I WAS UNFAMILIAR TO THE ARPT. THE WIND WAS STILL FAVORING RWY 12 AND ANOTHER ACFT HAD JUST DEPARTED RWY 12. I WAS UNDER THE IMPRESSION I WAS TO USE RWY 12. I DID THE RUNUP AND TAXIED UP TO THE HOLD LINE OF RWY 12 AND CALLED THE TWR AND TOLD THEM I WAS HOLDING SHORT OF THE ACTIVE TO TAKE OFF TO THE W. I WAS CLRED TO TAKE OFF. I TOOK OFF FROM RWY 12 AND WAS ABOUT 200-300 FT OFF THE GND WHEN THE CTLR NOTIFIED ME THAT I SHOULD HAVE TAKEN OFF FROM RWY 9L AND TO KEEP CLR OF THE DEP END OF RWY 9L AND HE WILL CALL MY TURN TO THE W WHICH HE DID AND I CONTINUED WITHOUT ANY FURTHER COMPLICATION. ON REFLECTION, BECAUSE I HAD BEEN GIVEN RWY 12 TO LAND EVEN THOUGH THEY WERE USING RWY 9L, AND THAT THE WIND FAVORED RWY 12 ALSO OTHER ACFT WERE DEPARTING RWY 12 AND THE TXWY THEY HAD GIVEN ME LED TO THE END OF RWY 12, I ASSUMED I WAS TO USE RWY 12. I SHOULD HAVE TOLD THE CTLR I WAS HOLDING SHORT OF RWY 12 AND FROM NOW ON I WILL ALWAYS QUOTE THE RWY NUMBER.

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.