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21-21 - Use of Automobile Gasoline in Agricultural Aircraft

Date Issued
August 24, 1984
Responsible Office
ACE-100,  Small Airplane Directorate

Sets forth acceptable conditions under which automobile gasoline (autogas) may be used in restricted category agricultural aircraft powered by Pratt and Whitney R-985 and R-1340 radial engines, and being used in agricultural operations under Federal Aviation Regulations Part 137.