Cleared for takeoff runway 27L but took off on runway 22.

Attributes
ACN	234608
Time
Date	199302
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mlb
State Reference	FL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	climbout : takeoff ground other : taxi
Flight Plan	VFR
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : commercial pilot : instrument pilot : cfi
Experience	flight time last 90 days : 70 flight time total : 440 flight time type : 50
ASRS Report	234608
Person 2
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : student
Events
Anomaly	incursion : runway other spatial deviation
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was flying with a student pilot and an observer in the back seat. I was correcting the student on a few mistakes here and there, and he was very hesitant on procedures since it was his first night flight. I was cleared for takeoff on runway 27L which is adjacent to runway 22 (the thresholds are about 100 ft apart). As we were taxiing to the runway the passenger alerted me of an aircraft that was landing near us. I looked back and noticed that the aircraft was doing a practice missed approach and wouldn't be a factor. By the time I looked forward we were already aligned with the runway. With all these distrs, I didn't check the directional gyroscope or compass. Another factor was that runway 4/22 had been closed for months and had just opened about 2 days before. I wasn't used to thinking the 2 thresholds were close to each other.

Original NASA ASRS Text

Title: CLRED FOR TKOF RWY 27L BUT TOOK OFF ON RWY 22.

Narrative: I WAS FLYING WITH A STUDENT PLT AND AN OBSERVER IN THE BACK SEAT. I WAS CORRECTING THE STUDENT ON A FEW MISTAKES HERE AND THERE, AND HE WAS VERY HESITANT ON PROCS SINCE IT WAS HIS FIRST NIGHT FLT. I WAS CLRED FOR TKOF ON RWY 27L WHICH IS ADJACENT TO RWY 22 (THE THRESHOLDS ARE ABOUT 100 FT APART). AS WE WERE TAXIING TO THE RWY THE PAX ALERTED ME OF AN ACFT THAT WAS LNDG NEAR US. I LOOKED BACK AND NOTICED THAT THE ACFT WAS DOING A PRACTICE MISSED APCH AND WOULDN'T BE A FACTOR. BY THE TIME I LOOKED FORWARD WE WERE ALREADY ALIGNED WITH THE RWY. WITH ALL THESE DISTRS, I DIDN'T CHK THE DIRECTIONAL GYROSCOPE OR COMPASS. ANOTHER FACTOR WAS THAT RWY 4/22 HAD BEEN CLOSED FOR MONTHS AND HAD JUST OPENED ABOUT 2 DAYS BEFORE. I WASN'T USED TO THINKING THE 2 THRESHOLDS WERE CLOSE TO EACH OTHER.

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.