no lost lit's directly related to SAS. it's a system to make you "safer" not "SAFE". nothing is idiot proof and the service interval is the PM interval. no one else has it because they havn't figured out a way to do it without infringing on the patent rights. why is every one so down on a system that "improves" not "guarantees" the operators safety level. i think it's sour grapes and wallet envy.
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