Greg,
How extensive is your OAC search? Are you just requesting OAC on neighboring masts aka the initial outer ring or are you also requesting OAC on the secondary outer ring or all masts within the switch or group?
A few years ago their was a legal opinion posted in this forum where a Federal agent got blasted in Court because he drew a conclusion based on historical CDR 's and failed to note that a mast in close proximity to the crime scent was no longer in use.
My feeling is that OAC or a request for maintenance records is not done all that often on this side of the pond. I don't think it's not that it isn't thought of, but possibly an issue with cost as the records may not be something which is kept in the normal course of business.
Cheers,
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