Piper PA28 N2804T accident near Canton, Georgia

Probable cause

Maintenance personnel's failure to ensure the proper throttle linkage travel clearance after the installation of an exhaust system.

NTSB analysis

According to the flight instructor, during the takeoff roll, he noted that the airplane felt "sluggish." After checking all systems, he and the student pilot continued the takeoff. The flight instructor noted that, after climbing to 200 ft, the airspeed began to decrease while the engine continued to produce power. The flight instructor performed an emergency landing in a wooded area, which resulted in substantial damage to the wings and fuselage. An examination of the airplane revealed that the carburetor throttle linkage was striking against the exhaust shield, which prevented the carburetor throttle linkage from its full movement at full throttle. A review of the maintenance logbooks revealed that a new exhaust system was recently installed on the engine. It is likely that maintenance personnel failed to ensure that the throttle linkage was properly adjusted, which prevented the throttle from opening fully and resulted in the engine being unable to produce full static power.

Text from the NTSB. Open the NTSB docket for ERA17LA277 for the full record.