Pt. 25

14 CFR Ch. I (1-1-19 Edition)

25.997 Fuel strainer or filter.
25.999 Fuel system drains.
25.1001 Fuel jettisoning system.

25.1192
25.1193
25.1195
25.1197
25.1199
25.1201
25.1203
25.1207

OIL SYSTEM
25.1011
25.1013
25.1015
25.1017
25.1019
25.1021
25.1023
25.1025
25.1027

General.
Oil tanks.
Oil tank tests.
Oil lines and fittings.
Oil strainer or filter.
Oil system drains.
Oil radiators.
Oil valves.
Propeller feathering system.

25.1041
25.1043
25.1045

General.
Cooling tests.
Cooling test procedures.

Subpart F - Equipment
GENERAL

COOLING

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.
EXHAUST SYSTEM
25.1121
25.1123
25.1125
25.1127

General.
Exhaust piping.
Exhaust heat exchangers.
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.

spaschal on DSK3GDR082PROD with CFR

Engine accessory section diaphragm.
Cowling and nacelle skin.
Fire extinguishing systems.
Fire extinguishing agents.
Extinguishing agent containers.
Fire extinguishing system materials.
Fire detector system.
Compliance.

25.1301 Function and installation.
25.1302 Installed systems and equipment for
use by the flightcrew.
25.1303 Flight and navigation instruments.
25.1305 Powerplant instruments.
25.1307 Miscellaneous equipment.
25.1309 Equipment, systems, and installations.
25.1310 Power source capacity and distribution.
25.1316 Electrical and electronic system
lightning protection.
25.1317 High-intensity
Radiated
Fields
(HIRF) Protection.
INSTRUMENTS: INSTALLATION
25.1321 Arrangement and visibility.
25.1322 Flightcrew alerting.
25.1323 Airspeed indicating system.
25.1324 Angle of attack system.
25.1325 Static pressure systems.
25.1326 Pitot heat indication systems.
25.1327 Magnetic direction indicator.
25.1329 Flight guidance system.
25.1331 Instruments using a power supply.
25.1333 Instrument systems.
25.1337 Powerplant instruments.
ELECTRICAL SYSTEMS AND EQUIPMENT
25.1351 General.
25.1353 Electrical equipment and installations.
25.1355 Distribution system.
25.1357 Circuit protective devices.
25.1360 Precautions against injury.
25.1362 Electrical supplies for emergency
conditions.
25.1363 Electrical system tests.
25.1365 Electrical appliances, motors, and
transformers.

POWERPLANT FIRE PROTECTION

LIGHTS

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.

25.1381 Instrument lights.
25.1383 Landing lights.
25.1385 Position light system installation.
25.1387 Position light system dihedral angles.
25.1389 Position light distribution and intensities.
25.1391 Minimum intensities in the horizontal plane of forward and rear position
lights.
25.1393 Minimum intensities in any vertical
plane of forward and rear position lights.

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