Takeoff from wrong runway when expediting departures at cmi.

Attributes
ACN	86935
Time
Date	198804
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cmi
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ogg
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	climbout : takeoff
Flight Plan	None
Aircraft 2
Make Model Name	Helicopter
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 58 flight time total : 330 flight time type : 245
ASRS Report	86935
Person 2
Function	flight crew : single pilot
Qualification	pilot : commercial
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

For the sole purpose of bldg flight time, I flew VFR from speedway (35Y) to champaign (cmi) and return. The flight over was uneventful. I contacted stage III TRSA about 25 mi out and landed on 4L. I then requested to taxi for immediate departure. I was instructed to back taxi on the 4R to 4L and call tower when ready to depart. I taxied to point a (see graph) and went through my pretkof checklist. With the checklist done I tuned in the tower. The tower was talking to a plane on a right base for 4L for a touch and go. I visually spotted the aircraft in what I thought was a tighter than normal base leg. I contacted tower fully expecting they (ATC) would have me wait until the plane on base had completed its touch and go. To my surprise they issued me on an immediate no delay departure. In my haste to help out the tower, I mistakenly took off from runway 36. I realized my mistake at about rotation when the tower issued a helicopter a traffic alert for traffic departing 36. This mistake occurred due to me accepting a hurried up clearance and not taking the time to reset my D/G prior to takeoff. This habitual practice would have aroused my suspicions since I would have had to reset my gyro around 40 degrees.

Original NASA ASRS Text

Title: TKOF FROM WRONG RWY WHEN EXPEDITING DEPS AT CMI.

Narrative: FOR THE SOLE PURPOSE OF BLDG FLT TIME, I FLEW VFR FROM SPEEDWAY (35Y) TO CHAMPAIGN (CMI) AND RETURN. THE FLT OVER WAS UNEVENTFUL. I CONTACTED STAGE III TRSA ABOUT 25 MI OUT AND LANDED ON 4L. I THEN REQUESTED TO TAXI FOR IMMEDIATE DEP. I WAS INSTRUCTED TO BACK TAXI ON THE 4R TO 4L AND CALL TWR WHEN READY TO DEPART. I TAXIED TO POINT A (SEE GRAPH) AND WENT THROUGH MY PRETKOF CHKLIST. WITH THE CHKLIST DONE I TUNED IN THE TWR. THE TWR WAS TALKING TO A PLANE ON A RIGHT BASE FOR 4L FOR A TOUCH AND GO. I VISUALLY SPOTTED THE ACFT IN WHAT I THOUGHT WAS A TIGHTER THAN NORMAL BASE LEG. I CONTACTED TWR FULLY EXPECTING THEY (ATC) WOULD HAVE ME WAIT UNTIL THE PLANE ON BASE HAD COMPLETED ITS TOUCH AND GO. TO MY SURPRISE THEY ISSUED ME ON AN IMMEDIATE NO DELAY DEP. IN MY HASTE TO HELP OUT THE TWR, I MISTAKENLY TOOK OFF FROM RWY 36. I REALIZED MY MISTAKE AT ABOUT ROTATION WHEN THE TWR ISSUED A HELI A TFC ALERT FOR TFC DEPARTING 36. THIS MISTAKE OCCURRED DUE TO ME ACCEPTING A HURRIED UP CLRNC AND NOT TAKING THE TIME TO RESET MY D/G PRIOR TO TKOF. THIS HABITUAL PRACTICE WOULD HAVE AROUSED MY SUSPICIONS SINCE I WOULD HAVE HAD TO RESET MY GYRO AROUND 40 DEGS.

Data retrieved from NASA's ASRS site as of August 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.