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I showed the damaged rotor, rotor housing and front side iron to Dave Atkins, the local expert. He thinks my engine suffered FOD but the entry point is a mystery. The broken side iron is My fault: thermal shock. The aluminum rotor housing experienced thermal expansion faster and greater than the side iron because I went to high power before the engine was sufficiently warm. The alignment dowel was moved outward by the growing aluminum housing and cracked out the side iron around the dowel, which is also the oil gallery
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On Jun 19, 2013, at 11:35 AM, Scott Emery <shipchief@aol.com> wrote:
Looks like FOD this is from rear rotor, all tip seals broke along with the closest corner seals
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