Cessna Caravan Engine Failure Dead Stick Landing
This is Cessna 208 Caravan that was upgraded from the stock PT6 to the PT6A, which adds an additional 75hp. Upon factory analysis of the engine, it was concluded that the problem started in the accessory drive gearbox. Metal from the gearbox passed through the compressor and free turbines, destroying several of the blades and ultimately causing catastrophic engine failure. So much metal shot through this engine that even the exhaust was beat all to hell and had to be replaced. I landed the plane with over 450 lbs of fuel and the oil level was within normal operating range. This wasn t the only PT6A engine failure this year. There were at least five others. As pilots, we were always taught that the Pratt Whitney turbines are bulletproof. This video is evidence that they are not. But, in the defense of the reliability of the these engines, they probably take more abuse in skydiving aircraft than any other application imaginable. Maximum performance takeoffs, climbs, and descents every 20
|
|