Takeoff on wrong runway.

Attributes
ACN	303363
Time
Date	199504
Day	Tue
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : stl
State Reference	MO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zma
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 135
Flight Phase	climbout : takeoff ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 240 flight time total : 2400 flight time type : 420
ASRS Report	303363
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	incursion : runway other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On apr/tue/95 at about XA00Z, taxi clearance was given to taxi down runway 31, hold short of runway 35, then to runway 12L for departure at stl. While taxiing down runway 35, the controller asked if I was ready to depart. I was ready. Controller cleared me for takeoff on runway 35. I suppose I got all the 3's mixed up because I turned around on runway 31 and departed on runway 13. By the time I realized what I did I was just lifting off. Also, tower informed me I was rolling on the wrong runway. Takeoff continued and rest of flight uneventful. I feel this was a very serious situation, especially in light of previous events at stl a few months back. Looking back on the incident I was tired. The airport was not busy so I may not have been attentive as I could have been! Also I was in a hurry to depart and get home. In my rush, the taxi clearance and takeoff clearance were changed. This led to some disorientation and the incident occurred. Next time I will slow down and use as much vigilance as possible regardless of the time of day and stay alert.

Original NASA ASRS Text

Title: TKOF ON WRONG RWY.

Narrative: ON APR/TUE/95 AT ABOUT XA00Z, TAXI CLRNC WAS GIVEN TO TAXI DOWN RWY 31, HOLD SHORT OF RWY 35, THEN TO RWY 12L FOR DEP AT STL. WHILE TAXIING DOWN RWY 35, THE CTLR ASKED IF I WAS READY TO DEPART. I WAS READY. CTLR CLRED ME FOR TKOF ON RWY 35. I SUPPOSE I GOT ALL THE 3'S MIXED UP BECAUSE I TURNED AROUND ON RWY 31 AND DEPARTED ON RWY 13. BY THE TIME I REALIZED WHAT I DID I WAS JUST LIFTING OFF. ALSO, TWR INFORMED ME I WAS ROLLING ON THE WRONG RWY. TKOF CONTINUED AND REST OF FLT UNEVENTFUL. I FEEL THIS WAS A VERY SERIOUS SIT, ESPECIALLY IN LIGHT OF PREVIOUS EVENTS AT STL A FEW MONTHS BACK. LOOKING BACK ON THE INCIDENT I WAS TIRED. THE ARPT WAS NOT BUSY SO I MAY NOT HAVE BEEN ATTENTIVE AS I COULD HAVE BEEN! ALSO I WAS IN A HURRY TO DEPART AND GET HOME. IN MY RUSH, THE TAXI CLRNC AND TKOF CLRNC WERE CHANGED. THIS LED TO SOME DISORIENTATION AND THE INCIDENT OCCURRED. NEXT TIME I WILL SLOW DOWN AND USE AS MUCH VIGILANCE AS POSSIBLE REGARDLESS OF THE TIME OF DAY AND STAY ALERT.

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.