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Old 05-02-2012, 11:09 AM   #2
Join Date: Jan 2006
Location: Vermont
Posts: 2,832

I'll have to look through a few files when I get home.

"TC" is the Type Certificate number

74 L 63 likely means a diameter of 74" and a pitch of 63", the "L" may refer to a Lycoming engine and hub.

"Ser 213" is likely the serial number, which is a low number and probably indicates a small production factory.
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