The pilot’s improper leaning of the engine during an extended period of time, which caused an exhaust valve to become stuck and led to the partial loss of engine power during the accident flight. Contributing to the accident was the pilot’s decision to attempt a second takeoff without having the engine further examined.
NTSB Accidents
Improper maintenance leads to bent 172
Loss of engine power due to the throttle linkage becoming disconnected in flight due to improper maintenance.
Missing hardware contributes to loss of control on landing
The loss of directional control during the landing roll, due to missing hardware which resulted in the separation of the nose landing gear torque links.
Three injured when pilot loses control while landing
The pilot’s failure to maintain directional control during landing, which resulted in a runway excursion.
Problems with fuel pump contributes to homebuilt’s crash
A total loss of engine power due to intermittent operation of both the engine-driven fuel pump and the electric boost pump. Contributing was the pilot’s delay in rejecting the takeoff, after the initial loss of engine power, which resulted in a collision with terrain.
Cessna 172 hits power lines after unstablized approach
The flight instructor’s delayed remedial action during an unstabilized approach, which resulted in an impact with powerlines and a subsequent loss of control
Overweight Diamond crashes, killing all four aboard
The pilot’s failure to maintain obstacle clearance, which resulted in controlled flight into terrain. Contributing to the accident was the pilot’s decision to operate the airplane above its maximum gross weight.
Pilot seriously injured during off-airport landing
The pilot’s inadequate preflight inspection of the fuel quantity, which resulted in fuel exhaustion, a subsequent total loss of engine power, and an off-airport landing.
Carb icing proves fatal
The pilot’s exceedance of the airplane’s critical angle of attack, which resulted in an inadvertent aerodynamic stall while returning to the airport following a partial loss of engine power for reasons that could not be determined.









