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Code of Federal Regulations (Last Updated: November 8, 2024) |
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Title 14 - Aeronautics and Space |
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Chapter I - Federal Aviation Administration, Department of Transportation |
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SubChapter C - Aircraft |
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Part 25 - Airworthiness Standards: Transport Category Airplanes |
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Subpart E - Powerplant |
| Powerplant Fire Protection |
| § 25.1181 - Designated fire zones; regions included. |
| § 25.1182 - Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid lines. |
| § 25.1183 - Flammable fluid-carrying components. |
| § 25.1185 - Flammable fluids. |
| § 25.1187 - Drainage and ventilation of fire zones. |
| § 25.1189 - Shutoff means. |
| § 25.1191 - Firewalls. |
| § 25.1192 - Engine accessory section diaphragm. |
| § 25.1193 - Cowling and nacelle skin. |
| § 25.1195 - Fire extinguishing systems. |
| § 25.1197 - Fire extinguishing agents. |
| § 25.1199 - Extinguishing agent containers. |
| § 25.1201 - Fire extinguishing system materials. |
| § 25.1203 - Fire detector system. |
| § 25.1207 - Compliance. |
| Fuel System |
| § 25.951 - General. |
| § 25.952 - Fuel system analysis and test. |
| § 25.953 - Fuel system independence. |
| § 25.954 - Fuel system lightning protection. |
| § 25.955 - Fuel flow. |
| § 25.957 - Flow between interconnected tanks. |
| § 25.959 - Unusable fuel supply. |
| § 25.961 - Fuel system hot weather operation. |
| § 25.963 - Fuel tanks: general. |
| § 25.965 - Fuel tank tests. |
| § 25.967 - Fuel tank installations. |
| § 25.969 - Fuel tank expansion space. |
| § 25.971 - Fuel tank sump. |
| § 25.973 - Fuel tank filler connection. |
| § 25.975 - Fuel tank vents and carburetor vapor vents. |
| § 25.977 - Fuel tank outlet. |
| § 25.979 - Pressure fueling system. |
| § 25.981 - Fuel tank explosion prevention. |
| Exhaust System |
| § 25.1121 - General. |
| § 25.1123 - Exhaust piping. |
| § 25.1125 - Exhaust heat exchangers. |
| § 25.1127 - Exhaust driven turbo-superchargers. |
| Powerplant Controls and Accessories |
| § 25.1141 - Powerplant controls: general. |
| § 25.1142 - Auxiliary power unit controls. |
| § 25.1143 - Engine controls. |
| § 25.1145 - Ignition switches. |
| § 25.1147 - Mixture controls. |
| § 25.1149 - Propeller speed and pitch controls. |
| § 25.1153 - Propeller feathering controls. |
| § 25.1155 - Reverse thrust and propeller pitch settings below the flight regime. |
| § 25.1157 - Carburetor air temperature controls. |
| § 25.1159 - Supercharger controls. |
| § 25.1161 - Fuel jettisoning system controls. |
| § 25.1163 - Powerplant accessories. |
| § 25.1165 - Engine ignition systems. |
| § 25.1167 - Accessory gearboxes. |
| Oil System |
| § 25.1011 - General. |
| § 25.1013 - Oil tanks. |
| § 25.1015 - Oil tank tests. |
| § 25.1017 - Oil lines and fittings. |
| § 25.1019 - Oil strainer or filter. |
| § 25.1021 - Oil system drains. |
| § 25.1023 - Oil radiators. |
| § 25.1025 - Oil valves. |
| § 25.1027 - Propeller feathering system. |
| General |
| § 25.901 - Installation. |
| § 25.903 - Engines. |
| § 25.904 - Automatic takeoff thrust control system (ATTCS). |
| § 25.905 - Propellers. |
| § 25.907 - Propeller vibration and fatigue. |
| § 25.925 - Propeller clearance. |
| § 25.929 - Propeller deicing. |
| § 25.933 - Reversing systems. |
| § 25.934 - Turbojet engine thrust reverser system tests. |
| § 25.937 - Turbopropeller-drag limiting systems. |
| § 25.939 - Turbine engine operating characteristics. |
| § 25.941 - Inlet, engine, and exhaust compatibility. |
| § 25.943 - Negative acceleration. |
| § 25.945 - Thrust or power augmentation system. |
| Cooling |
| § 25.1041 - General. |
| § 25.1043 - Cooling tests. |
| § 25.1045 - Cooling test procedures. |
| Induction System |
| § 25.1091 - Air induction. |
| § 25.1093 - Induction system icing protection. |
| § 25.1101 - Carburetor air preheater design. |
| § 25.1103 - Induction system ducts and air duct systems. |
| § 25.1105 - Induction system screens. |
| § 25.1107 - Inter-coolers and after-coolers. |
| Fuel System Components |
| § 25.991 - Fuel pumps. |
| § 25.993 - Fuel system lines and fittings. |
| § 25.994 - Fuel system components. |
| § 25.995 - Fuel valves. |
| § 25.997 - Fuel strainer or filter. |
| § 25.999 - Fuel system drains. |
| § 25.1001 - Fuel jettisoning system. |