Incident Overview
Following departure, the pilot climbed to 2,500 feet mean sea level and initiated throttle adjustments. The throttle lever became loose, and subsequent movement produced no change in engine RPM. Shortly thereafter, the engine began losing RPM.
Precautionary Landing
The pilot identified a 2,400-foot grass strip suitable for a precautionary landing and glided toward the field. The airplane touched down at the midpoint of the strip, but was unable to stop before the end. It departed the grass field and struck several small pine trees.
Post-Accident Examination
An examination of the aircraft's engine revealed that the throttle linkage had separated from the throttle arm. Additionally, a linkage bolt was missing at the carburetor.
Maintenance History
A review of the maintenance logbooks indicated that a new engine had been installed 1.2 flight hours prior to the accident.