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Hi,
We have just experianced the dreaded crankcase failure on our Tecnam Bravo 2005 year model.
Engine hours 857. The first indication was drops of oil on the hanger floor. After 2 hours flying it became a major leak and a crack became evident as per the photo.Pilots should be aware that if the leak becomes major crankcase pressure can fall followed by crankcase oil failing to return to the tank and eventual oil stavation. We have fitted a brand new engine as repair became uneconomical.
My home country is New Zealand
Dave Jennings
2012-02-2118.08.34.jpg (You do not have access to download this file.)
  • Re: 912ULS Crankcase Crack

    by » 13 years ago


    It would be interesting to have a metallurgist or materials engineer take a look at the engine to see what they think the cause was. Bad casting? Looking at the photo it appears as if the crack originated at the base of the cylinder and spread from there. That said, keep in mind I'm a Missouri dirt farmer. Sorry for your misfortune.
    Mike

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