Narrative:

Overshot runway 26 at ZZZ. Turned on base to final approach 1500 ft from the end of the runway at 350 ft of altitude. Mistook cable release knob for the spoilers handle. Slipped the aircraft down to 50 ft and touched down at the end of the runway, approximately 30 ft from the end. The aircraft rolled through the grass area of the approach zone and ground looped in the area beyond the field access road. The field has 8400 ft of paved runway. I should have used more of it.

Google
 

Original NASA ASRS Text

Title: SPN PLT FAILS TO PROPERLY ACTIVATE SPOILERS, LANDS LONG, AND GND LOOPS ON GRASS OVERRUN.

Narrative: OVERSHOT RWY 26 AT ZZZ. TURNED ON BASE TO FINAL APCH 1500 FT FROM THE END OF THE RWY AT 350 FT OF ALT. MISTOOK CABLE RELEASE KNOB FOR THE SPOILERS HANDLE. SLIPPED THE ACFT DOWN TO 50 FT AND TOUCHED DOWN AT THE END OF THE RWY, APPROX 30 FT FROM THE END. THE ACFT ROLLED THROUGH THE GRASS AREA OF THE APCH ZONE AND GND LOOPED IN THE AREA BEYOND THE FIELD ACCESS ROAD. THE FIELD HAS 8400 FT OF PAVED RWY. I SHOULD HAVE USED MORE OF IT.

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.