e-CFR data is current as of January 26, 2021
TITLE 14—Aeronautics and Space
CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION SUBCHAPTER C—AIRCRAFT PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
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Special Federal Aviation Regulation No. 13 |
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Special Federal Aviation Regulation No. 109 |
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Subpart A—GENERAL
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Special retroactive requirements. |
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Special provisions for ETOPS type design approvals. |
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Incorporations by reference. |
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Subpart B—FLIGHT
General
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Load distribution limits. |
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Center of gravity limits. |
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Empty weight and corresponding center of gravity. |
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Propeller speed and pitch limits. |
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Performance
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Accelerate-stop distance. |
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Takeoff distance and takeoff run. |
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Landing climb: All-engines-operating. |
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Climb: One-engine-inoperative. |
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Controllability and Maneuverability
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Directional and lateral control. |
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Trim
Stability
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Static longitudinal stability. |
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Demonstration of static longitudinal stability. |
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Static lateral-directional stability. |
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Stalls
Ground and Water Handling Characteristics
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Longitudinal stability and control. |
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Directional stability and control. |
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Spray characteristics, control, and stability on water. |
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Miscellaneous Flight Requirements
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High-speed characteristics. |
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Out-of-trim characteristics. |
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Subpart C—STRUCTURE
General
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Strength and deformation. |
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Flight Loads
Flight Maneuver and Gust Conditions
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Symmetric maneuvering conditions. |
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Flight maneuvering envelope. |
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Limit maneuvering load factors. |
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Gust and turbulence loads. |
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Design fuel and oil loads. |
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Supplementary Conditions
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Engine and auxiliary power unit torque. |
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Side load on engine and auxiliary power unit mounts. |
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Pressurized compartment loads. |
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Unsymmetrical loads due to engine failure. |
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Control Surface and System Loads
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Control surface loads: General. |
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Loads parallel to hinge line. |
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Secondary control system. |
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Auxiliary aerodynamic surfaces. |
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Ground Loads
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Landing load conditions and assumptions. |
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Landing gear arrangement. |
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Level landing conditions. |
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Tail-down landing conditions. |
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One-gear landing conditions. |
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Rebound landing condition. |
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Ground handling conditions. |
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Taxi, takeoff and landing roll. |
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Nose-wheel yaw and steering. |
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Ground load: unsymmetrical loads on multiple-wheel units. |
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Jacking and tie-down provisions. |
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Water Loads
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Design weights and center of gravity positions. |
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Hull and main float load factors. |
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Hull and main float landing conditions. |
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Hull and main float takeoff condition. |
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Hull and main float bottom pressures. |
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Emergency Landing Conditions
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Emergency landing dynamic conditions. |
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Structural ditching provisions. |
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Fatigue Evaluation
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Damage—tolerance and fatigue evaluation of structure. |
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Lightning Protection
Subpart D—DESIGN AND CONSTRUCTION
General
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Accessibility provisions. |
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Material strength properties and material design values. |
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Aeroelastic stability requirements. |
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Control Surfaces
Control Systems
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Stability augmentation and automatic and power-operated systems. |
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Control system gust locks. |
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Lift and drag devices, controls. |
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Lift and drag device indicator. |
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Flap and slat interconnection. |
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Landing Gear
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Brakes and braking systems. |
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Floats and Hulls
Personnel and Cargo Accommodations
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Motion and effect of cockpit controls. |
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Cockpit control knob shape. |
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Seats, berths, safety belts, and harnesses. |
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Retention of items of mass in passenger and crew compartments and galleys. |
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Passenger information signs and placards. |
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Emergency Provisions
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Emergency exit arrangement. |
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Emergency egress assist means and escape routes. |
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Maximum number of seats abreast. |
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Lower deck service compartments (including galleys). |
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Ventilation and Heating
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Cabin ozone concentration. |
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Combustion heating systems. |
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Pressurization
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Tests for pressurized cabins. |
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Fire Protection
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Lavatory fire protection. |
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Cargo or baggage compartments. |
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Thermal/Acoustic insulation materials. |
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Cargo compartment classification. |
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Cargo or baggage compartment smoke or fire detection systems. |
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Combustion heater fire protection. |
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Flammable fluid fire protection. |
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Fire protection of flight controls, engine mounts, and other flight structure. |
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Fire protection: other components. |
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Fire protection: systems. |
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Miscellaneous
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Reinforcement near propellers. |
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Electrical bonding and protection against static electricity. |
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Subpart E—POWERPLANT
General
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Automatic takeoff thrust control system (ATTCS). |
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Propeller vibration and fatigue. |
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Turbojet engine thrust reverser system tests. |
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Turbopropeller-drag limiting systems. |
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Turbine engine operating characteristics. |
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Inlet, engine, and exhaust compatibility. |
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Thrust or power augmentation system. |
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Fuel System
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Fuel system analysis and test. |
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Fuel system independence. |
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Fuel system lightning protection. |
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Flow between interconnected tanks. |
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Fuel system hot weather operation. |
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Fuel tank expansion space. |
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Fuel tank filler connection. |
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Fuel tank vents and carburetor vapor vents. |
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Fuel tank explosion prevention. |
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Fuel System Components
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Fuel system lines and fittings. |
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Oil System
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Propeller feathering system. |
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Cooling
Induction System
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Induction system icing protection. |
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Carburetor air preheater design. |
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Induction system ducts and air duct systems. |
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Induction system screens. |
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Inter-coolers and after-coolers. |
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Exhaust System
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Exhaust driven turbo-superchargers. |
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Powerplant Controls and Accessories
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Powerplant controls: general. |
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Auxiliary power unit controls. |
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Propeller speed and pitch controls. |
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Propeller feathering controls. |
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Reverse thrust and propeller pitch settings below the flight regime. |
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Carburetor air temperature controls. |
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Fuel jettisoning system controls. |
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Powerplant Fire Protection
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Designated fire zones; regions included. |
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Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid lines. |
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Flammable fluid-carrying components. |
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Drainage and ventilation of fire zones. |
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Engine accessory section diaphragm. |
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Cowling and nacelle skin. |
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Fire extinguishing systems. |
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Fire extinguishing agents. |
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Extinguishing agent containers. |
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Fire extinguishing system materials. |
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Subpart F—EQUIPMENT
General
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Function and installation. |
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Installed systems and equipment for use by the flightcrew. |
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Flight and navigation instruments. |
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Equipment, systems, and installations. |
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Power source capacity and distribution. |
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Electrical and electronic system lightning protection. |
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High-intensity Radiated Fields (HIRF) Protection. |
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Instruments: Installation
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Arrangement and visibility. |
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Airspeed indicating system. |
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Pitot heat indication systems. |
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Magnetic direction indicator. |
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Instruments using a power supply. |
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Electrical Systems and Equipment
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Electrical equipment and installations. |
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Circuit protective devices. |
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Precautions against injury. |
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Electrical supplies for emergency conditions. |
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Electrical appliances, motors, and transformers. |
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Lights
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Position light system installation. |
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Position light system dihedral angles. |
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Position light distribution and intensities. |
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Minimum intensities in the horizontal plane of forward and rear position lights. |
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Minimum intensities in any vertical plane of forward and rear position lights. |
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Maximum intensities in overlapping beams of forward and rear position lights. |
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Anticollision light system. |
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Wing icing detection lights. |
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Safety Equipment
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Supercooled large drop icing conditions. |
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Miscellaneous Equipment
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Pressurization and pneumatic systems. |
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Protective breathing equipment. |
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Oxygen equipment and supply. |
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Minimum mass flow of supplemental oxygen. |
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Equipment standards for the oxygen distributing system. |
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Equipment standards for oxygen dispensing units. |
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Means for determining use of oxygen. |
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Chemical oxygen generators. |
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Protection of oxygen equipment from rupture. |
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Draining of fluids subject to freezing. |
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Equipment containing high energy rotors. |
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Subpart G—OPERATING LIMITATIONS AND INFORMATION
Operating Limitations
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Airspeed limitations: general. |
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Maximum operating limit speed. |
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Weight, center of gravity, and weight distribution. |
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Auxiliary power unit limitations. |
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Ambient air temperature and operating altitude. |
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Instructions for Continued Airworthiness. |
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Maneuvering flight load factors. |
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Additional operating limitations. |
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Markings and Placards
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Instrument markings: general. |
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Airspeed limitation information. |
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Magnetic direction indicator. |
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Powerplant and auxiliary power unit instruments. |
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Miscellaneous markings and placards. |
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Airplane Flight Manual
Subpart H—ELECTRICAL WIRING INTERCONNECTION SYSTEMS (EWIS)
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Function and installation: EWIS. |
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Systems and functions: EWIS. |
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Component identification: EWIS. |
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Electrical bonding and protection against static electricity: EWIS. |
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Circuit protective devices: EWIS. |
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Accessibility provisions: EWIS. |
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Flammable fluid fire protection: EWIS. |
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Flammable fluid shutoff means: EWIS. |
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Instructions for Continued Airworthiness: EWIS. |
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Powerplant and APU fire detector system: EWIS. |
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Fire detector systems, general: EWIS. |
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Subpart I—SPECIAL FEDERAL AVIATION REGULATIONS
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SFAR No. 111—Lavatory Oxygen Systems. |
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