U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 14Chapter IPart 29Subpart E - Subpart E—Powerplant

GENERAL
§ 29.901 - Installation.
§ 29.903 - Engines.
§ 29.907 - Engine vibration.
§ 29.908 - Cooling fans.

ROTOR DRIVE SYSTEM
§ 29.917 - Design.
§ 29.921 - Rotor brake.
§ 29.923 - Rotor drive system and control mechanism tests.
§ 29.927 - Additional tests.
§ 29.931 - Shafting critical speed.
§ 29.935 - Shafting joints.
§ 29.939 - Turbine engine operating characteristics.

FUEL SYSTEM
§ 29.951 - General.
§ 29.952 - Fuel system crash resistance.
§ 29.953 - Fuel system independence.
§ 29.954 - Fuel system lightning protection.
§ 29.955 - Fuel flow.
§ 29.957 - Flow between interconnected tanks.
§ 29.959 - Unusable fuel supply.
§ 29.961 - Fuel system hot weather operation.
§ 29.963 - Fuel tanks: general.
§ 29.965 - Fuel tank tests.
§ 29.967 - Fuel tank installation.
§ 29.969 - Fuel tank expansion space.
§ 29.971 - Fuel tank sump.
§ 29.973 - Fuel tank filler connection.
§ 29.975 - Fuel tank vents and carburetor vapor vents.
§ 29.977 - Fuel tank outlet.
§ 29.979 - Pressure refueling and fueling provisions below fuel level.

FUEL SYSTEM COMPONENTS
§ 29.991 - Fuel pumps.
§ 29.993 - Fuel system lines and fittings.
§ 29.995 - Fuel valves.
§ 29.997 - Fuel strainer or filter.
§ 29.999 - Fuel system drains.
§ 29.1001 - Fuel jettisoning.

OIL SYSTEM
§ 29.1011 - Engines: general.
§ 29.1013 - Oil tanks.
§ 29.1015 - Oil tank tests.
§ 29.1017 - Oil lines and fittings.
§ 29.1019 - Oil strainer or filter.
§ 29.1021 - Oil system drains.
§ 29.1023 - Oil radiators.
§ 29.1025 - Oil valves.
§ 29.1027 - Transmission and gearboxes: general.

COOLING
§ 29.1041 - General.
§ 29.1043 - Cooling tests.
§ 29.1045 - Climb cooling test procedures.
§ 29.1047 - Takeoff cooling test procedures.
§ 29.1049 - Hovering cooling test procedures.

INDUCTION SYSTEM
§ 29.1091 - Air induction.
§ 29.1093 - Induction system icing protection.
§ 29.1101 - Carburetor air preheater design.
§ 29.1103 - Induction systems ducts and air duct systems.
§ 29.1105 - Induction system screens.
§ 29.1107 - Inter-coolers and after-coolers.
§ 29.1109 - Carburetor air cooling.

EXHAUST SYSTEM
§ 29.1121 - General.
§ 29.1123 - Exhaust piping.
§ 29.1125 - Exhaust heat exchangers.

POWERPLANT CONTROLS AND ACCESSORIES
§ 29.1141 - Powerplant controls: general.
§ 29.1142 - Auxiliary power unit controls.
§ 29.1143 - Engine controls.
§ 29.1145 - Ignition switches.
§ 29.1147 - Mixture controls.
§ 29.1151 - Rotor brake controls.
§ 29.1157 - Carburetor air temperature controls.
§ 29.1159 - Supercharger controls.
§ 29.1163 - Powerplant accessories.
§ 29.1165 - Engine ignition systems.

POWERPLANT FIRE PROTECTION
§ 29.1181 - Designated fire zones: regions included.
§ 29.1183 - Lines, fittings, and components.
§ 29.1185 - Flammable fluids.
§ 29.1187 - Drainage and ventilation of fire zones.
§ 29.1189 - Shutoff means.
§ 29.1191 - Firewalls.
§ 29.1193 - Cowling and engine compartment covering.
§ 29.1194 - Other surfaces.
§ 29.1195 - Fire extinguishing systems.
§ 29.1197 - Fire extinguishing agents.
§ 29.1199 - Extinguishing agent containers.
§ 29.1201 - Fire extinguishing system materials.
§ 29.1203 - Fire detector systems.
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