The information provided to you is wrong in several areas. First, none of the proposed SIDs of the wings have repeat inspections more frequently than 3,000 hours. Second, the SIDs are not expected to apply to aircraft in Part 91 operations (i.e., personal aircraft not used commercially), but will apply to other aircraft, including most operated overseas; so the phrase "AOPA has indicated that 337's in general would not have to comply" is inaccurate.
Ernie
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