Four Place Cabin, Land, Monoplane
Look at this type certificate data sheet for the Cessna 172:
http://www.airweb.faa.gov/Regulatory...$FILE/3a12.pdf
On the first page, you see:
Quote:
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I. Model 172, 4 PCLM (Normal Category), approved November 4, 1955; 2 PCLM (Utility Category), approved December 14, 1956
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