R. ENGINES. Pratt &. U. Whitney EAST HARTFORD, CONNECTICUT DIVISION OF UNITED AIRCRAFT 118611 Maintenance Manual contains instructions cover-. Pratt Whitney R-1340-AN-1 Overhaul Instruction Manual. Thread starter mikec1; Start date Aug 14, 2013 · Aug 14, 2013. This manuals and blueprints are not meant to be used for current update material for certification / repair, but make an excellent reference for the scholar,T.O. 2R-R1340-3 Handbook Overhaul Instructions R-1340-AN-1 aircraft engines · T.O. 2R-R1340-5 - Overhaul changes applicable to Pratt and Whitney R-1340