Narrative:

Cleared per tower for runway 36 takeoff and I took off from parallel taxiway thinking this was runway 36. Controller asked that I call lse tower upon reaching my destination (dbq). When talking with lse tower controller on the phone, she (tower) stated she'd report it to FSDO. There was also a plane at the other end of taxiway which I saw after takeoff.

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Original NASA ASRS Text

Title: PLT OF SMA TOOK OFF ON TXWY WHEN CLEARED FOR TKF RWY 36 AT LSE.

Narrative: CLRED PER TWR FOR RWY 36 TKOF AND I TOOK OFF FROM PARALLEL TXWY THINKING THIS WAS RWY 36. CTLR ASKED THAT I CALL LSE TWR UPON REACHING MY DEST (DBQ). WHEN TALKING WITH LSE TWR CTLR ON THE PHONE, SHE (TWR) STATED SHE'D RPT IT TO FSDO. THERE WAS ALSO A PLANE AT THE OTHER END OF TXWY WHICH I SAW AFTER TKOF.

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.