Current CFR by Part
 
 

SectionTitleAmdtEff Date
Show details for Part 1 - DEFINITIONS AND ABBREVIATIONSPart 1 - DEFINITIONS AND ABBREVIATIONS
Show details for Part 3 - GENERAL REQUIREMENTSPart 3 - GENERAL REQUIREMENTS
Show details for Part 11 - GENERAL RULEMAKING PROCEDURESPart 11 - GENERAL RULEMAKING PROCEDURES
Show details for Part 13 - INVESTIGATIVE AND ENFORCEMENT PROCEDURESPart 13 - INVESTIGATIVE AND ENFORCEMENT PROCEDURES
Show details for Part 14 - RULES IMPLEMENTING THE EQUAL ACCESS TO JUSTICE ACT OF 1980Part 14 - RULES IMPLEMENTING THE EQUAL ACCESS TO JUSTICE ACT OF 1980
Show details for Part 15 - ADMINISTRATIVE CLAIMS UNDER FEDERAL TORT CLAIMS ACTPart 15 - ADMINISTRATIVE CLAIMS UNDER FEDERAL TORT CLAIMS ACT
Show details for Part 16 - RULES OF PRACTICE FOR FEDERALLY-ASSISTED AIRPORT ENFORCEMENT PROCEEDINGSPart 16 - RULES OF PRACTICE FOR FEDERALLY-ASSISTED AIRPORT ENFORCEMENT PROCEEDINGS
Show details for Part 17 - PROCEDURES FOR PROTESTS AND CONTRACTS DISPUTESPart 17 - PROCEDURES FOR PROTESTS AND CONTRACTS DISPUTES
Show details for Part 21 - CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTSPart 21 - CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS
Show details for Part 23 - AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANESPart 23 - AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES
Show details for Part 25 - AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANESPart 25 - AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
Show details for Part 26 - CONTINUED AIRWORTHINESS AND SAFETY IMPROVEMENTS FOR TRANSPORT CATEGORY AIRPLANESPart 26 - CONTINUED AIRWORTHINESS AND SAFETY IMPROVEMENTS FOR TRANSPORT CATEGORY AIRPLANES
Hide details for Part 27 - AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFTPart 27 - AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
Sec. 27.1Applicability.27-3710/18/1999
Sec. 27.2Special retroactive requirements.27-3710/18/1999
Sec. 27.21Proof of compliance.27-2112/06/1984
Sec. 27.25Weight limits.27-4406/16/2008
Sec. 27.27Center of gravity limits.27-202/25/1968
Sec. 27.29Empty weight and corresponding center of gravity.27-1403/01/1978
Sec. 27.31Removable ballast.02/01/1965
Sec. 27.33Main rotor speed and pitch limits.27-1403/01/1978
Sec. 27.45General.27-2112/06/1984
Sec. 27.51Takeoff.27-4403/31/2008
Sec. 27.65Climb: All engines operating.27-3308/08/1996
Sec. 27.67Climb: one engine inoperative.27-2310/03/1988
Sec. 27.71[Autorotation performance]27-4403/31/2008
Sec. 27.49Performance at minimum operating speed.27-4403/31/2008
Sec. 27.75Landing.27-4403/31/2008
Sec. 27.79Limiting height--speed envelope.27-2112/06/1984
Sec. 27.87[Height--speed envelope.]27-4403/31/2008
Sec. 27.141General.27-2112/06/1984
Sec. 27.143Controllability and maneuverability.27-4403/31/2008
Sec. 27.151[Flight controls.]27-2112/06/1984
Sec. 27.161Trim control.27-2112/06/1984
Sec. 27.171Stability: general.02/01/1965
Sec. 27.173Static longitudinal stability.27-4403/31/2008
Sec. 27.175Demonstration of static longitudinal stability.27-4403/31/2008
Sec. 27.177Static directional stability.27-4403/31/2008
Sec. 27.231General.02/01/1965
Sec. 27.235Taxiing condition.02/01/1965
Sec. 27.239Spray characteristics.02/01/1965
Sec. 27.241Ground resonance.02/01/1965
Sec. 27.251Vibration.02/01/1965
Sec. 27.301Loads.02/01/1965
Sec. 27.303Factor of safety.02/01/1965
Sec. 27.305Strength and deformation.02/01/1965
Sec. 27.307Proof of structure.27-2604/05/1990
Sec. 27.309Design limitations.02/01/1965
Sec. 27.321General.27-1102/01/1977
Sec. 27.337Limit maneuvering load factor.27-2604/05/1990
Sec. 27.339Resultant limit maneuvering loads.27-1102/01/1977
Sec. 27.341Gust loads.02/01/1965
Sec. 27.351Yawing conditions.27-3411/28/1997
Sec. 27.361Engine torque.27-2310/03/1988
Sec. 27.391General.27-3411/28/1997
Sec. 27.395Control system.27-2604/05/1990
Sec. 27.397Limit pilot forces and torques.27-4005/09/2001
Sec. 27.399Dual control system.02/01/1965
Sec. 27.401[Removed.]27-2710/22/1990
Sec. 27.403[Removed.]27-2710/22/1990
Sec. 27.411Ground clearance: tail rotor guard.02/01/1965
Sec. 27.413[Removed.]27-2710/22/1990
Sec. 27.427Unsymmetrical loads.27-2710/22/1990
Sec. 27.471General.02/01/1965
Sec. 27.473Ground loading conditions and assumptions.27-202/25/1968
Sec. 27.475Tires and shock absorbers.02/01/1965
Sec. 27.477Landing gear arrangement.02/01/1965
Sec. 27.479Level landing conditions.02/01/1965
Sec. 27.481Tail-down landing conditions.02/01/1965
Sec. 27.483One-wheel landing conditions.02/01/1965
Sec. 27.485Lateral drift landing conditions.02/01/1965
Sec. 27.493Braked roll conditions.02/01/1965
Sec. 27.497Ground loading conditions: landing gear with tail wheels.02/01/1965
Sec. 27.501Ground loading conditions: landing gear with skids.27-2604/05/1990
Sec. 27.505Ski landing conditions.02/01/1965
Sec. 27.521Float landing conditions.02/01/1965
Sec. 27.547Main rotor structure.27-310/17/1968
Sec. 27.549Fuselage, landing gear, and rotor pylon structures.27-310/17/1968
Sec. 27.561General.27-3206/11/1996
Sec. 27.562[Emergency landing dynamic conditions.]27-2512/13/1989
Sec. 27.563Structural ditching provisions.27-2604/05/1990
Sec. 27.571Fatigue evaluation of flight structure.27-2604/05/1990
Sec. 27.601Design.02/01/1965
Sec. 27.602[Critical parts.]27-3810/25/1999
Sec. 27.603Materials.27-1612/01/1978
Sec. 27.605Fabrication methods.27-1612/01/1978
Sec. 27.607[Fasteners.]27-410/27/1968
Sec. 27.609Protection of structure.02/01/1965
Sec. 27.610[Lightning and static electricity protection.]27-3710/18/1999
Sec. 27.611Inspection provisions.02/01/1965
Sec. 27.613Material strength properties and design values.27-2604/05/1990
Sec. 27.619Special factors.02/01/1965
Sec. 27.621Casting factors.27-3411/28/1997
Sec. 27.623Bearing factors.02/01/1965
Sec. 27.625Fitting factors.27-3509/08/1998
Sec. 27.629Flutter.27-2604/05/1990
Sec. 27.653Pressure venting and drainage of rotor blades.27-202/25/1968
Sec. 27.659Mass balance.27-202/25/1968
Sec. 27.661Rotor blade clearance.27-202/25/1968
Sec. 27.663Ground resonance prevention means.27-2604/05/1990
Sec. 27.671General.02/01/1965
Sec. 27.672[Stability augmentation, automatic, and power-operated systems.]27-2112/06/1984
Sec. 27.673[Primary flight control.]27-2112/06/1984
Sec. 27.674[Interconnected controls.]27-2604/05/1990
Sec. 27.675Stops.27-1612/01/1978
Sec. 27.679Control system locks.02/01/1965
Sec. 27.681Limit load static tests.02/01/1965
Sec. 27.683Operation tests.02/01/1965
Sec. 27.685Control system details.27-2604/05/1990
Sec. 27.687Spring devices.02/01/1965
Sec. 27.691Autorotation control mechanism.02/01/1965
Sec. 27.695Power boost and power-operated control system.02/01/1965
Sec. 27.723Shock absorption tests.02/01/1965
Sec. 27.725Limit drop test.02/01/1965
Sec. 27.727Reserve energy absorption drop test.27-2604/05/1990
Sec. 27.729[Retracting mechanism.]27-2112/06/1984
Sec. 27.731Wheels.02/01/1965
Sec. 27.733Tires.27-1102/01/1977
Sec. 27.735Brakes.27-2112/06/1984
Sec. 27.737Skis.02/01/1965
Sec. 27.751Main float buoyancy.27-202/25/1968
Sec. 27.753Main float design.02/01/1965
Sec. 27.755Hulls.02/01/1965
Sec. 27.771Pilot compartment.02/01/1965
Sec. 27.773Pilot compartment view.02/01/1965
Sec. 27.775Windshields and windows.27-2710/22/1990
Sec. 27.777Cockpit controls.02/01/1965
Sec. 27.779[Motion and effect of cockpit controls.]27-2112/06/1984
Sec. 27.783Doors.27-2604/05/1990
Sec. 27.785Seats, berths, [litters,] safety belts, and harnesses.27-3509/08/1998
Sec. 27.787Cargo and baggage compartments.27-2710/22/1990
Sec. 27.801[Ditching.]27-1102/01/1977
Sec. 27.805[Flight crew emergency exits.]27-3710/18/1999
Sec. 27.807Emergency exits.27-3710/18/1999
Sec. 27.831Ventilation.02/01/1965
Sec. 27.833[Heaters.]27-2310/03/1988
Sec. 27.853Compartment interiors.27-3710/18/1999
Sec. 27.855Cargo and baggage compartments.02/01/1965
Sec. 27.859Heating systems.27-2310/03/1988
Sec. 27.861Fire protection of structure, controls, and other parts.27-2604/05/1990
Sec. 27.863[Flammable fluid fire protection.]27-1612/01/1978
Sec. 27.865External Loads.27-3610/05/1999
Sec. 27.871Leveling marks.02/01/1965
Sec. 27.873Ballast provisions.02/01/1965
Sec. 27.901Installation.27-2310/03/1988
Sec. 27.903Engines.27-4403/31/2008
Sec. 27.907Engine vibration.02/01/1965
Sec. 27.917Design.27-1102/01/1977
Sec. 27.921Rotor brake.02/01/1965
Sec. 27.923Rotor drive system and control mechanism tests.27-2910/17/1994
Sec. 27.927Additional tests.27-2310/03/1988
Sec. 27.931Shafting critical speed.02/01/1965
Sec. 27.935Shafting joints.02/01/1965
Sec. 27.939Turbine engine operating characteristics.27-1102/01/1977
Sec. 27.951General.27-910/31/1974
Sec. 27.952[Fuel system crash resistance.]27-3011/02/1994
Sec. 27.953Fuel system independence.02/01/1965
Sec. 27.954[Fuel system lightning protection.]27-2310/03/1988
Sec. 27.955Fuel flow.27-2310/03/1988
Sec. 27.959Unusable fuel supply.02/01/1965
Sec. 27.961Fuel system hot weather operation.27-2310/03/1988
Sec. 27.963Fuel tanks: general.27-3011/02/1994
Sec. 27.965[Fuel tank tests.]27-1205/02/1977
Sec. 27.967[Fuel tank installation.]27-3011/02/1994
Sec. 27.969Fuel tank expansion space.27-2310/03/1988
Sec. 27.971Fuel tank sump.27-2310/03/1988
Sec. 27.973Fuel tank filler connection.27-3011/02/1994
Sec. 27.975Fuel tank vents.27-3509/08/1998
Sec. 27.977Fuel tank outlet.27-1102/01/1977
Sec. 27.991Fuel pumps.27-2310/03/1988
Sec. 27.993Fuel system lines and fittings.27-202/25/1968
Sec. 27.995Fuel valves.02/01/1965
Sec. 27.997Fuel strainer or filter.27-2310/03/1988
Sec. 27.999Fuel system drains.27-2310/03/1988
Sec. 27.1011[Engines:] general.27-2310/03/1988
Sec. 27.1013Oil tanks.27-910/31/1974
Sec. 27.1015[Oil tank tests.]27-910/31/1974
Sec. 27.1017Oil lines and fittings.02/01/1965
Sec. 27.1019Oil strainer or filter.27-2310/03/1988
Sec. 27.1021Oil system drains.27-2003/26/1984
Sec. 27.1027Transmissions and gearboxes: General.27-3710/18/1999
Sec. 27.1041General.27-2310/03/1988
Sec. 27.1043Cooling tests.27-1403/01/1978
Sec. 27.1045Cooling test procedures.27-2310/03/1988
Sec. 27.1091Air induction.27-2310/03/1988
Sec. 27.1093Induction system icing protection.27-2310/03/1988
Sec. 27.1121General.27-1205/02/1977
Sec. 27.1123[Exhaust piping.]27-1102/01/1977
Sec. 27.1141Powerplant controls: general.27-3308/08/1996
Sec. 27.1143Engine controls.27-2910/17/1994
Sec. 27.1145Ignition switches.27-1205/02/1977
Sec. 27.1147Mixture controls.02/01/1965
Sec. 27.1151[Rotor brake controls.]27-3308/08/1996
Sec. 27.1163Powerplant accessories.27-2310/03/1988
Sec. 27.1183[Lines, fittings, and components.]27-2003/26/1984
Sec. 27.1185Flammable fluids.27-3710/18/1999
Sec. 27.1187Ventilation [and drainage.]27-3710/18/1999
Sec. 27.1189Shutoff means.27-2310/03/1988
Sec. 27.1191[Firewalls.]27-202/25/1968
Sec. 27.1193Cowling and engine compartment covering.27-2310/03/1988