Narrative:

I have no good explanation as to what caused the problem. Contributing factors? Light haze and fog. Turned from base to final lined up on what I thought was the runway and landed. Was informed of error by ground control. I will be reminded of this error at every landing I make for the rest of my life.

Google
 

Original NASA ASRS Text

Title: PLT LANDS ON TXWY BY MISTAKE.

Narrative: I HAVE NO GOOD EXPLANATION AS TO WHAT CAUSED THE PROB. CONTRIBUTING FACTORS? LIGHT HAZE AND FOG. TURNED FROM BASE TO FINAL LINED UP ON WHAT I THOUGHT WAS THE RWY AND LANDED. WAS INFORMED OF ERROR BY GND CTL. I WILL BE REMINDED OF THIS ERROR AT EVERY LNDG I MAKE FOR THE REST OF MY LIFE.

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.