Narrative:

I circled the airstrip at 1000 ft AGL looking for potential hazards and to familiarize myself with the approach and landing terrain. Compared to some of the airstrips I had already landed at that morning; the root ranch strip seemed straightforward -- both the approach and departure areas were clear and the length of the strip seemed plenty long. The strip was clear of animals and the windsock was limp. On the rollout from the landing; I braked immediately; and then raised the flaps. I continued braking; though not as hard as I could have if I had realized how close we were getting to the end of the strip. The grass on that part of the airstrip was 12-18 inches tall; and the white painted logs that marked the end corners of the strip were not visible until one was almost on top of them. My visual perception; as I was approaching the end of the runway; was that this grass field that the strip is on; stretched on for another 200 ft. It wasn't until I could see the airstrip end logs that I began to recognize a dip just past them. At that point; I put all the pressure I could on the brakes; but I wasn't able to stop the plane from rolling into what turned out to be a shallow gulley at the end of the strip. The propeller and nose gear were damaged in the process. Supplemental information from acn 701745: PIC had demonstrated ability to land in difficult mountain airstrips that morning at wilson bar; dixie town; dixie usfs; and chamberlain. After landing at root ranch; I told PIC to apply brakes; emphasizing that I was becoming nervous about stopping. PIC raised flaps to improve braking action and applied brakes. His efforts were inadequate and aircraft rolled past the end of the runway and into a wallow used for stream access by animals.

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Original NASA ASRS Text

Title: C206 FLT CREW HAS A RWY EXCURSION.

Narrative: I CIRCLED THE AIRSTRIP AT 1000 FT AGL LOOKING FOR POTENTIAL HAZARDS AND TO FAMILIARIZE MYSELF WITH THE APCH AND LNDG TERRAIN. COMPARED TO SOME OF THE AIRSTRIPS I HAD ALREADY LANDED AT THAT MORNING; THE ROOT RANCH STRIP SEEMED STRAIGHTFORWARD -- BOTH THE APCH AND DEP AREAS WERE CLR AND THE LENGTH OF THE STRIP SEEMED PLENTY LONG. THE STRIP WAS CLR OF ANIMALS AND THE WINDSOCK WAS LIMP. ON THE ROLLOUT FROM THE LNDG; I BRAKED IMMEDIATELY; AND THEN RAISED THE FLAPS. I CONTINUED BRAKING; THOUGH NOT AS HARD AS I COULD HAVE IF I HAD REALIZED HOW CLOSE WE WERE GETTING TO THE END OF THE STRIP. THE GRASS ON THAT PART OF THE AIRSTRIP WAS 12-18 INCHES TALL; AND THE WHITE PAINTED LOGS THAT MARKED THE END CORNERS OF THE STRIP WERE NOT VISIBLE UNTIL ONE WAS ALMOST ON TOP OF THEM. MY VISUAL PERCEPTION; AS I WAS APCHING THE END OF THE RWY; WAS THAT THIS GRASS FIELD THAT THE STRIP IS ON; STRETCHED ON FOR ANOTHER 200 FT. IT WASN'T UNTIL I COULD SEE THE AIRSTRIP END LOGS THAT I BEGAN TO RECOGNIZE A DIP JUST PAST THEM. AT THAT POINT; I PUT ALL THE PRESSURE I COULD ON THE BRAKES; BUT I WASN'T ABLE TO STOP THE PLANE FROM ROLLING INTO WHAT TURNED OUT TO BE A SHALLOW GULLEY AT THE END OF THE STRIP. THE PROP AND NOSE GEAR WERE DAMAGED IN THE PROCESS. SUPPLEMENTAL INFO FROM ACN 701745: PIC HAD DEMONSTRATED ABILITY TO LAND IN DIFFICULT MOUNTAIN AIRSTRIPS THAT MORNING AT WILSON BAR; DIXIE TOWN; DIXIE USFS; AND CHAMBERLAIN. AFTER LNDG AT ROOT RANCH; I TOLD PIC TO APPLY BRAKES; EMPHASIZING THAT I WAS BECOMING NERVOUS ABOUT STOPPING. PIC RAISED FLAPS TO IMPROVE BRAKING ACTION AND APPLIED BRAKES. HIS EFFORTS WERE INADEQUATE AND ACFT ROLLED PAST THE END OF THE RWY AND INTO A WALLOW USED FOR STREAM ACCESS BY ANIMALS.

Data retrieved from NASA's ASRS site as of January 2009 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.