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Hugh Mattern and Bob Matlock are now friends 1 year, 4 months ago
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Hugh Mattern and John Lyon are now friends 1 year, 7 months ago
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Hugh Mattern and Bruce Mayes are now friends 1 year, 7 months ago
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Hugh Mattern and nelson harding are now friends 1 year, 7 months ago
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Hugh Mattern's profile was updated 2 years, 6 months ago
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Jay McLeod and Hugh Mattern are now friends 2 years, 6 months ago
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Mark Young and Hugh Mattern are now friends 4 years, 2 months ago
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Garry Elghammer and Hugh Mattern are now friends 4 years, 2 months ago
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Ashley Wade and Hugh Mattern are now friends 4 years, 2 months ago
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Tom Thibodeau and Hugh Mattern are now friends 4 years, 4 months ago
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John Secord and Hugh Mattern are now friends 4 years, 4 months ago
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Hugh Mattern started the topic AC 23-27 in the forum Meyers 200 4 years, 6 months ago
This AC provides guidance for substantiating parts or materials substitutions to maintain the safety of old or out-of-production GA aircraft, or other GA aircraft where the parts or materials are either difficult or impossible to obtain.
This AC applies to small aircraft type certificated before January 1, 1980, -
Tom Losey and Hugh Mattern are now friends 5 years, 5 months ago
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Ross Warner and Hugh Mattern are now friends 6 years, 5 months ago
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Phil W. Hart and Hugh Mattern are now friends 6 years, 5 months ago
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Kent Aitchison and Hugh Mattern are now friends 6 years, 6 months ago
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Richard E Russell and Hugh Mattern are now friends 6 years, 7 months ago
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Jamon Pruitt and Hugh Mattern are now friends 7 years ago
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John Secord and Hugh Mattern are now friends 7 years, 1 month ago
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Dan McLeod and Hugh Mattern are now friends 7 years, 1 month ago
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