"A minor point - Allison could say it was still running, but just not putting out any power."
I like that answer, sounds like one typically taken from an Insurance claim......
I remember years ago while working on the Surplus Program for Law Enforcement ( As you may know many OH-58s were given out.) Anyway through the surplus system We were also allowed to get NEW Military oil that saved us a ton of money. When brought up in a discussion where the Allison Rep was present and the mention of MilSpec oil was used he almost had a heart attack....Thats bad oil etc.... really went bonkers. I came back with "You mean to tell me I have been flying this thing in the Military for years and the Oil they use is no good"......He got real quiet. I just think he was wanting folks to BUY his oil....