Title 14

PART 27

Part 27 - Airworthiness Standards: Normal Category Rotorcraft

PART 27 - AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT Authority:49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704. Source:Docket No. 5074, 29 FR 15695, Nov. 24, 1964, unless otherwise noted.

14:1.0.1.3.14.1SUBPART A
Subpart A - General
14:1.0.1.3.14.1.161.1SECTION 27.1
   27.1 Applicability.
14:1.0.1.3.14.1.161.2SECTION 27.2
   27.2 Special retroactive requirements.
14:1.0.1.3.14.2SUBPART B
Subpart B - Flight
14:1.0.1.3.14.2.161SUBJGRP 161
   General
14:1.0.1.3.14.2.161.1SECTION 27.21
   27.21 Proof of compliance.
14:1.0.1.3.14.2.161.2SECTION 27.25
   27.25 Weight limits.
14:1.0.1.3.14.2.161.3SECTION 27.27
   27.27 Center of gravity limits.
14:1.0.1.3.14.2.161.4SECTION 27.29
   27.29 Empty weight and corresponding center of gravity.
14:1.0.1.3.14.2.161.5SECTION 27.31
   27.31 Removable ballast.
14:1.0.1.3.14.2.161.6SECTION 27.33
   27.33 Main rotor speed and pitch limits.
14:1.0.1.3.14.2.162SUBJGRP 162
   Performance
14:1.0.1.3.14.2.162.7SECTION 27.45
   27.45 General.
14:1.0.1.3.14.2.162.8SECTION 27.49
   27.49 Performance at minimum operating speed.
14:1.0.1.3.14.2.162.9SECTION 27.51
   27.51 Takeoff.
14:1.0.1.3.14.2.162.10SECTION 27.65
   27.65 Climb: all engines operating.
14:1.0.1.3.14.2.162.11SECTION 27.67
   27.67 Climb: one engine inoperative.
14:1.0.1.3.14.2.162.12SECTION 27.71
   27.71 Autorotation performance.
14:1.0.1.3.14.2.162.13SECTION 27.75
   27.75 Landing.
14:1.0.1.3.14.2.162.14SECTION 27.87
   27.87 Height-speed envelope.
14:1.0.1.3.14.2.163SUBJGRP 163
   Flight Characteristics
14:1.0.1.3.14.2.163.15SECTION 27.141
   27.141 General.
14:1.0.1.3.14.2.163.16SECTION 27.143
   27.143 Controllability and maneuverability.
14:1.0.1.3.14.2.163.17SECTION 27.151
   27.151 Flight controls.
14:1.0.1.3.14.2.163.18SECTION 27.161
   27.161 Trim control.
14:1.0.1.3.14.2.163.19SECTION 27.171
   27.171 Stability: general.
14:1.0.1.3.14.2.163.20SECTION 27.173
   27.173 Static longitudinal stability.
14:1.0.1.3.14.2.163.21SECTION 27.175
   27.175 Demonstration of static longitudinal stability.
14:1.0.1.3.14.2.163.22SECTION 27.177
   27.177 Static directional stability.
14:1.0.1.3.14.2.164SUBJGRP 164
   Ground and Water Handling Characteristics
14:1.0.1.3.14.2.164.23SECTION 27.231
   27.231 General.
14:1.0.1.3.14.2.164.24SECTION 27.235
   27.235 Taxiing condition.
14:1.0.1.3.14.2.164.25SECTION 27.239
   27.239 Spray characteristics.
14:1.0.1.3.14.2.164.26SECTION 27.241
   27.241 Ground resonance.
14:1.0.1.3.14.2.165SUBJGRP 165
   Miscellaneous Flight Requirements
14:1.0.1.3.14.2.165.27SECTION 27.251
   27.251 Vibration.
14:1.0.1.3.14.3SUBPART C
Subpart C - Strength Requirements
14:1.0.1.3.14.3.166SUBJGRP 166
   General
14:1.0.1.3.14.3.166.1SECTION 27.301
   27.301 Loads.
14:1.0.1.3.14.3.166.2SECTION 27.303
   27.303 Factor of safety.
14:1.0.1.3.14.3.166.3SECTION 27.305
   27.305 Strength and deformation.
14:1.0.1.3.14.3.166.4SECTION 27.307
   27.307 Proof of structure.
14:1.0.1.3.14.3.166.5SECTION 27.309
   27.309 Design limitations.
14:1.0.1.3.14.3.167SUBJGRP 167
   Flight Loads
14:1.0.1.3.14.3.167.6SECTION 27.321
   27.321 General.
14:1.0.1.3.14.3.167.7SECTION 27.337
   27.337 Limit maneuvering load factor.
14:1.0.1.3.14.3.167.8SECTION 27.339
   27.339 Resultant limit maneuvering loads.
14:1.0.1.3.14.3.167.9SECTION 27.341
   27.341 Gust loads.
14:1.0.1.3.14.3.167.10SECTION 27.351
   27.351 Yawing conditions.
14:1.0.1.3.14.3.167.11SECTION 27.361
   27.361 Engine torque.
14:1.0.1.3.14.3.168SUBJGRP 168
   Control Surface and System Loads
14:1.0.1.3.14.3.168.12SECTION 27.391
   27.391 General.
14:1.0.1.3.14.3.168.13SECTION 27.395
   27.395 Control system.
14:1.0.1.3.14.3.168.14SECTION 27.397
   27.397 Limit pilot forces and torques.
14:1.0.1.3.14.3.168.15SECTION 27.399
   27.399 Dual control system.
14:1.0.1.3.14.3.168.16SECTION 27.411
   27.411 Ground clearance: tail rotor guard.
14:1.0.1.3.14.3.168.17SECTION 27.427
   27.427 Unsymmetrical loads.
14:1.0.1.3.14.3.169SUBJGRP 169
   Ground Loads
14:1.0.1.3.14.3.169.18SECTION 27.471
   27.471 General.
14:1.0.1.3.14.3.169.19SECTION 27.473
   27.473 Ground loading conditions and assumptions.
14:1.0.1.3.14.3.169.20SECTION 27.475
   27.475 Tires and shock absorbers.
14:1.0.1.3.14.3.169.21SECTION 27.477
   27.477 Landing gear arrangement.
14:1.0.1.3.14.3.169.22SECTION 27.479
   27.479 Level landing conditions.
14:1.0.1.3.14.3.169.23SECTION 27.481
   27.481 Tail-down landing conditions.
14:1.0.1.3.14.3.169.24SECTION 27.483
   27.483 One-wheel landing conditions.
14:1.0.1.3.14.3.169.25SECTION 27.485
   27.485 Lateral drift landing conditions.
14:1.0.1.3.14.3.169.26SECTION 27.493
   27.493 Braked roll conditions.
14:1.0.1.3.14.3.169.27SECTION 27.497
   27.497 Ground loading conditions: landing gear with tail wheels.
14:1.0.1.3.14.3.169.28SECTION 27.501
   27.501 Ground loading conditions: landing gear with skids.
14:1.0.1.3.14.3.169.29SECTION 27.505
   27.505 Ski landing conditions.
14:1.0.1.3.14.3.170SUBJGRP 170
   Water Loads
14:1.0.1.3.14.3.170.30SECTION 27.521
   27.521 Float landing conditions.
14:1.0.1.3.14.3.171SUBJGRP 171
   Main Component Requirements
14:1.0.1.3.14.3.171.31SECTION 27.547
   27.547 Main rotor structure.
14:1.0.1.3.14.3.171.32SECTION 27.549
   27.549 Fuselage, landing gear, and rotor pylon structures.
14:1.0.1.3.14.3.172SUBJGRP 172
   Emergency Landing Conditions
14:1.0.1.3.14.3.172.33SECTION 27.561
   27.561 General.
14:1.0.1.3.14.3.172.34SECTION 27.562
   27.562 Emergency landing dynamic conditions.
14:1.0.1.3.14.3.172.35SECTION 27.563
   27.563 Structural ditching provisions.
14:1.0.1.3.14.3.173SUBJGRP 173
   Fatigue Evaluation
14:1.0.1.3.14.3.173.36SECTION 27.571
   27.571 Fatigue evaluation of flight structure.
14:1.0.1.3.14.3.173.37SECTION 27.573
   27.573 Damage Tolerance and Fatigue Evaluation of Composite Rotorcraft Structures.
14:1.0.1.3.14.4SUBPART D
Subpart D - Design and Construction
14:1.0.1.3.14.4.174SUBJGRP 174
   General
14:1.0.1.3.14.4.174.1SECTION 27.601
   27.601 Design.
14:1.0.1.3.14.4.174.2SECTION 27.602
   27.602 Critical parts.
14:1.0.1.3.14.4.174.3SECTION 27.603
   27.603 Materials.
14:1.0.1.3.14.4.174.4SECTION 27.605
   27.605 Fabrication methods.
14:1.0.1.3.14.4.174.5SECTION 27.607
   27.607 Fasteners.
14:1.0.1.3.14.4.174.6SECTION 27.609
   27.609 Protection of structure.
14:1.0.1.3.14.4.174.7SECTION 27.610
   27.610 Lightning and static electricity protection.
14:1.0.1.3.14.4.174.8SECTION 27.611
   27.611 Inspection provisions.
14:1.0.1.3.14.4.174.9SECTION 27.613
   27.613 Material strength properties and design values.
14:1.0.1.3.14.4.174.10SECTION 27.619
   27.619 Special factors.
14:1.0.1.3.14.4.174.11SECTION 27.621
   27.621 Casting factors.
14:1.0.1.3.14.4.174.12SECTION 27.623
   27.623 Bearing factors.
14:1.0.1.3.14.4.174.13SECTION 27.625
   27.625 Fitting factors.
14:1.0.1.3.14.4.174.14SECTION 27.629
   27.629 Flutter.
14:1.0.1.3.14.4.175SUBJGRP 175
   Rotors
14:1.0.1.3.14.4.175.15SECTION 27.653
   27.653 Pressure venting and drainage of rotor blades.
14:1.0.1.3.14.4.175.16SECTION 27.659
   27.659 Mass balance.
14:1.0.1.3.14.4.175.17SECTION 27.661
   27.661 Rotor blade clearance.
14:1.0.1.3.14.4.175.18SECTION 27.663
   27.663 Ground resonance prevention means.
14:1.0.1.3.14.4.176SUBJGRP 176
   Control Systems
14:1.0.1.3.14.4.176.19SECTION 27.671
   27.671 General.
14:1.0.1.3.14.4.176.20SECTION 27.672
   27.672 Stability augmentation, automatic, and power-operated systems.
14:1.0.1.3.14.4.176.21SECTION 27.673
   27.673 Primary flight control.
14:1.0.1.3.14.4.176.22SECTION 27.674
   27.674 Interconnected controls.
14:1.0.1.3.14.4.176.23SECTION 27.675
   27.675 Stops.
14:1.0.1.3.14.4.176.24SECTION 27.679
   27.679 Control system locks.
14:1.0.1.3.14.4.176.25SECTION 27.681
   27.681 Limit load static tests.
14:1.0.1.3.14.4.176.26SECTION 27.683
   27.683 Operation tests.
14:1.0.1.3.14.4.176.27SECTION 27.685
   27.685 Control system details.
14:1.0.1.3.14.4.176.28SECTION 27.687
   27.687 Spring devices.
14:1.0.1.3.14.4.176.29SECTION 27.691
   27.691 Autorotation control mechanism.
14:1.0.1.3.14.4.176.30SECTION 27.695
   27.695 Power boost and power-operated control system.
14:1.0.1.3.14.4.177SUBJGRP 177
   Landing Gear
14:1.0.1.3.14.4.177.31SECTION 27.723
   27.723 Shock absorption tests.
14:1.0.1.3.14.4.177.32SECTION 27.725
   27.725 Limit drop test.
14:1.0.1.3.14.4.177.33SECTION 27.727
   27.727 Reserve energy absorption drop test.
14:1.0.1.3.14.4.177.34SECTION 27.729
   27.729 Retracting mechanism.
14:1.0.1.3.14.4.177.35SECTION 27.731
   27.731 Wheels.
14:1.0.1.3.14.4.177.36SECTION 27.733
   27.733 Tires.
14:1.0.1.3.14.4.177.37SECTION 27.735
   27.735 Brakes.
14:1.0.1.3.14.4.177.38SECTION 27.737
   27.737 Skis.
14:1.0.1.3.14.4.178SUBJGRP 178
   Floats and Hulls
14:1.0.1.3.14.4.178.39SECTION 27.751
   27.751 Main float buoyancy.
14:1.0.1.3.14.4.178.40SECTION 27.753
   27.753 Main float design.
14:1.0.1.3.14.4.178.41SECTION 27.755
   27.755 Hulls.
14:1.0.1.3.14.4.179SUBJGRP 179
   Personnel and Cargo Accommodations
14:1.0.1.3.14.4.179.42SECTION 27.771
   27.771 Pilot compartment.
14:1.0.1.3.14.4.179.43SECTION 27.773
   27.773 Pilot compartment view.
14:1.0.1.3.14.4.179.44SECTION 27.775
   27.775 Windshields and windows.
14:1.0.1.3.14.4.179.45SECTION 27.777
   27.777 Cockpit controls.
14:1.0.1.3.14.4.179.46SECTION 27.779
   27.779 Motion and effect of cockpit controls.
14:1.0.1.3.14.4.179.47SECTION 27.783
   27.783 Doors.
14:1.0.1.3.14.4.179.48SECTION 27.785
   27.785 Seats, berths, litters, safety belts, and harnesses.
14:1.0.1.3.14.4.179.49SECTION 27.787
   27.787 Cargo and baggage compartments.
14:1.0.1.3.14.4.179.50SECTION 27.801
   27.801 Ditching.
14:1.0.1.3.14.4.179.51SECTION 27.805
   27.805 Flight crew emergency exits.
14:1.0.1.3.14.4.179.52SECTION 27.807
   27.807 Emergency exits.
14:1.0.1.3.14.4.179.53SECTION 27.831
   27.831 Ventilation.
14:1.0.1.3.14.4.179.54SECTION 27.833
   27.833 Heaters.
14:1.0.1.3.14.4.180SUBJGRP 180
   Fire Protection
14:1.0.1.3.14.4.180.55SECTION 27.853
   27.853 Compartment interiors.
14:1.0.1.3.14.4.180.56SECTION 27.855
   27.855 Cargo and baggage compartments.
14:1.0.1.3.14.4.180.57SECTION 27.859
   27.859 Heating systems.
14:1.0.1.3.14.4.180.58SECTION 27.861
   27.861 Fire protection of structure, controls, and other parts.
14:1.0.1.3.14.4.180.59SECTION 27.863
   27.863 Flammable fluid fire protection.
14:1.0.1.3.14.4.181SUBJGRP 181
   External Loads
14:1.0.1.3.14.4.181.60SECTION 27.865
   27.865 External loads.
14:1.0.1.3.14.4.182SUBJGRP 182
   Miscellaneous
14:1.0.1.3.14.4.182.61SECTION 27.871
   27.871 Leveling marks.
14:1.0.1.3.14.4.182.62SECTION 27.873
   27.873 Ballast provisions.
14:1.0.1.3.14.5SUBPART E
Subpart E - Powerplant
14:1.0.1.3.14.5.183SUBJGRP 183
   General
14:1.0.1.3.14.5.183.1SECTION 27.901
   27.901 Installation.
14:1.0.1.3.14.5.183.2SECTION 27.903
   27.903 Engines.
14:1.0.1.3.14.5.183.3SECTION 27.907
   27.907 Engine vibration.
14:1.0.1.3.14.5.184SUBJGRP 184
   Rotor Drive System
14:1.0.1.3.14.5.184.4SECTION 27.917
   27.917 Design.
14:1.0.1.3.14.5.184.5SECTION 27.921
   27.921 Rotor brake.
14:1.0.1.3.14.5.184.6SECTION 27.923
   27.923 Rotor drive system and control mechanism tests.
14:1.0.1.3.14.5.184.7SECTION 27.927
   27.927 Additional tests.
14:1.0.1.3.14.5.184.8SECTION 27.931
   27.931 Shafting critical speed.
14:1.0.1.3.14.5.184.9SECTION 27.935
   27.935 Shafting joints.
14:1.0.1.3.14.5.184.10SECTION 27.939
   27.939 Turbine engine operating characteristics.
14:1.0.1.3.14.5.185SUBJGRP 185
   Fuel System
14:1.0.1.3.14.5.185.11SECTION 27.951
   27.951 General.
14:1.0.1.3.14.5.185.12SECTION 27.952
   27.952 Fuel system crash resistance.
14:1.0.1.3.14.5.185.13SECTION 27.953
   27.953 Fuel system independence.
14:1.0.1.3.14.5.185.14SECTION 27.954
   27.954 Fuel system lightning protection.
14:1.0.1.3.14.5.185.15SECTION 27.955
   27.955 Fuel flow.
14:1.0.1.3.14.5.185.16SECTION 27.959
   27.959 Unusable fuel supply.
14:1.0.1.3.14.5.185.17SECTION 27.961
   27.961 Fuel system hot weather operation.
14:1.0.1.3.14.5.185.18SECTION 27.963
   27.963 Fuel tanks: general.
14:1.0.1.3.14.5.185.19SECTION 27.965
   27.965 Fuel tank tests.
14:1.0.1.3.14.5.185.20SECTION 27.967
   27.967 Fuel tank installation.
14:1.0.1.3.14.5.185.21SECTION 27.969
   27.969 Fuel tank expansion space.
14:1.0.1.3.14.5.185.22SECTION 27.971
   27.971 Fuel tank sump.
14:1.0.1.3.14.5.185.23SECTION 27.973
   27.973 Fuel tank filler connection.
14:1.0.1.3.14.5.185.24SECTION 27.975
   27.975 Fuel tank vents.
14:1.0.1.3.14.5.185.25SECTION 27.977
   27.977 Fuel tank outlet.
14:1.0.1.3.14.5.186SUBJGRP 186
   Fuel System Components
14:1.0.1.3.14.5.186.26SECTION 27.991
   27.991 Fuel pumps.
14:1.0.1.3.14.5.186.27SECTION 27.993
   27.993 Fuel system lines and fittings.
14:1.0.1.3.14.5.186.28SECTION 27.995
   27.995 Fuel valves.
14:1.0.1.3.14.5.186.29SECTION 27.997
   27.997 Fuel strainer or filter.
14:1.0.1.3.14.5.186.30SECTION 27.999
   27.999 Fuel system drains.
14:1.0.1.3.14.5.187SUBJGRP 187
   Oil System
14:1.0.1.3.14.5.187.31SECTION 27.1011
   27.1011 Engines: General.
14:1.0.1.3.14.5.187.32SECTION 27.1013
   27.1013 Oil tanks.
14:1.0.1.3.14.5.187.33SECTION 27.1015
   27.1015 Oil tank tests.
14:1.0.1.3.14.5.187.34SECTION 27.1017
   27.1017 Oil lines and fittings.
14:1.0.1.3.14.5.187.35SECTION 27.1019
   27.1019 Oil strainer or filter.
14:1.0.1.3.14.5.187.36SECTION 27.1021
   27.1021 Oil system drains.
14:1.0.1.3.14.5.187.37SECTION 27.1027
   27.1027 Transmissions and gearboxes: General.
14:1.0.1.3.14.5.188SUBJGRP 188
   Cooling
14:1.0.1.3.14.5.188.38SECTION 27.1041
   27.1041 General.
14:1.0.1.3.14.5.188.39SECTION 27.1043
   27.1043 Cooling tests.
14:1.0.1.3.14.5.188.40SECTION 27.1045
   27.1045 Cooling test procedures.
14:1.0.1.3.14.5.189SUBJGRP 189
   Induction System
14:1.0.1.3.14.5.189.41SECTION 27.1091
   27.1091 Air induction.
14:1.0.1.3.14.5.189.42SECTION 27.1093
   27.1093 Induction system icing protection.
14:1.0.1.3.14.5.190SUBJGRP 190
   Exhaust System
14:1.0.1.3.14.5.190.43SECTION 27.1121
   27.1121 General.
14:1.0.1.3.14.5.190.44SECTION 27.1123
   27.1123 Exhaust piping.
14:1.0.1.3.14.5.191SUBJGRP 191
   Powerplant Controls and Accessories
14:1.0.1.3.14.5.191.45SECTION 27.1141
   27.1141 Powerplant controls: general.
14:1.0.1.3.14.5.191.46SECTION 27.1143
   27.1143 Engine controls.
14:1.0.1.3.14.5.191.47SECTION 27.1145
   27.1145 Ignition switches.
14:1.0.1.3.14.5.191.48SECTION 27.1147
   27.1147 Mixture controls.
14:1.0.1.3.14.5.191.49SECTION 27.1151
   27.1151 Rotor brake controls.
14:1.0.1.3.14.5.191.50SECTION 27.1163
   27.1163 Powerplant accessories.
14:1.0.1.3.14.5.192SUBJGRP 192
   Powerplant Fire Protection
14:1.0.1.3.14.5.192.51SECTION 27.1183
   27.1183 Lines, fittings, and components.
14:1.0.1.3.14.5.192.52SECTION 27.1185
   27.1185 Flammable fluids.
14:1.0.1.3.14.5.192.53SECTION 27.1187
   27.1187 Ventilation and drainage.
14:1.0.1.3.14.5.192.54SECTION 27.1189
   27.1189 Shutoff means.
14:1.0.1.3.14.5.192.55SECTION 27.1191
   27.1191 Firewalls.
14:1.0.1.3.14.5.192.56SECTION 27.1193
   27.1193 Cowling and engine compartment covering.
14:1.0.1.3.14.5.192.57SECTION 27.1194
   27.1194 Other surfaces.
14:1.0.1.3.14.5.192.58SECTION 27.1195
   27.1195 Fire detector systems.
14:1.0.1.3.14.6SUBPART F
Subpart F - Equipment
14:1.0.1.3.14.6.193SUBJGRP 193
   General
14:1.0.1.3.14.6.193.1SECTION 27.1301
   27.1301 Function and installation.
14:1.0.1.3.14.6.193.2SECTION 27.1303
   27.1303 Flight and navigation instruments.
14:1.0.1.3.14.6.193.3SECTION 27.1305
   27.1305 Powerplant instruments.
14:1.0.1.3.14.6.193.4SECTION 27.1307
   27.1307 Miscellaneous equipment.
14:1.0.1.3.14.6.193.5SECTION 27.1309
   27.1309 Equipment, systems, and installations.
14:1.0.1.3.14.6.193.6SECTION 27.1316
   27.1316 Electrical and electronic system lightning protection.
14:1.0.1.3.14.6.193.7SECTION 27.1317
   27.1317 High-intensity Radiated Fields (HIRF) Protection.
14:1.0.1.3.14.6.194SUBJGRP 194
   Instruments: Installation
14:1.0.1.3.14.6.194.8SECTION 27.1321
   27.1321 Arrangement and visibility.
14:1.0.1.3.14.6.194.9SECTION 27.1322
   27.1322 Warning, caution, and advisory lights.
14:1.0.1.3.14.6.194.10SECTION 27.1323
   27.1323 Airspeed indicating system.
14:1.0.1.3.14.6.194.11SECTION 27.1325
   27.1325 Static pressure systems.
14:1.0.1.3.14.6.194.12SECTION 27.1327
   27.1327 Magnetic direction indicator.
14:1.0.1.3.14.6.194.13SECTION 27.1329
   27.1329 Automatic pilot system.
14:1.0.1.3.14.6.194.14SECTION 27.1335
   27.1335 Flight director systems.
14:1.0.1.3.14.6.194.15SECTION 27.1337
   27.1337 Powerplant instruments.
14:1.0.1.3.14.6.195SUBJGRP 195
   Electrical Systems and Equipment
14:1.0.1.3.14.6.195.16SECTION 27.1351
   27.1351 General.
14:1.0.1.3.14.6.195.17SECTION 27.1353
   27.1353 Storage battery design and installation.
14:1.0.1.3.14.6.195.18SECTION 27.1357
   27.1357 Circuit protective devices.
14:1.0.1.3.14.6.195.19SECTION 27.1361
   27.1361 Master switch.
14:1.0.1.3.14.6.195.20SECTION 27.1365
   27.1365 Electric cables.
14:1.0.1.3.14.6.195.21SECTION 27.1367
   27.1367 Switches.
14:1.0.1.3.14.6.196SUBJGRP 196
   Lights
14:1.0.1.3.14.6.196.22SECTION 27.1381
   27.1381 Instrument lights.
14:1.0.1.3.14.6.196.23SECTION 27.1383
   27.1383 Landing lights.
14:1.0.1.3.14.6.196.24SECTION 27.1385
   27.1385 Position light system installation.
14:1.0.1.3.14.6.196.25SECTION 27.1387
   27.1387 Position light system dihedral angles.
14:1.0.1.3.14.6.196.26SECTION 27.1389
   27.1389 Position light distribution and intensities.
14:1.0.1.3.14.6.196.27SECTION 27.1391
   27.1391 Minimum intensities in the horizontal plane of forward and rear position lights.
14:1.0.1.3.14.6.196.28SECTION 27.1393
   27.1393 Minimum intensities in any vertical plane of forward and rear position lights.
14:1.0.1.3.14.6.196.29SECTION 27.1395
   27.1395 Maximum intensities in overlapping beams of forward and rear position lights.
14:1.0.1.3.14.6.196.30SECTION 27.1397
   27.1397 Color specifications.
14:1.0.1.3.14.6.196.31SECTION 27.1399
   27.1399 Riding light.
14:1.0.1.3.14.6.196.32SECTION 27.1401
   27.1401 Anticollision light system.
14:1.0.1.3.14.6.197SUBJGRP 197
   Safety Equipment
14:1.0.1.3.14.6.197.33SECTION 27.1411
   27.1411 General.
14:1.0.1.3.14.6.197.34SECTION 27.1413
   27.1413 Safety belts.
14:1.0.1.3.14.6.197.35SECTION 27.1415
   27.1415 Ditching equipment.
14:1.0.1.3.14.6.197.36SECTION 27.1419
   27.1419 Ice protection.
14:1.0.1.3.14.6.197.37SECTION 27.1435
   27.1435 Hydraulic systems.
14:1.0.1.3.14.6.197.38SECTION 27.1457
   27.1457 Cockpit voice recorders.
14:1.0.1.3.14.6.197.39SECTION 27.1459
   27.1459 Flight data recorders.
14:1.0.1.3.14.6.197.40SECTION 27.1461
   27.1461 Equipment containing high energy rotors.
14:1.0.1.3.14.7SUBPART G
Subpart G - Operating Limitations and Information
14:1.0.1.3.14.7.198SUBJGRP 198
   Operating Limitations
14:1.0.1.3.14.7.198.1SECTION 27.1501
   27.1501 General.
14:1.0.1.3.14.7.198.2SECTION 27.1503
   27.1503 Airspeed limitations: general.
14:1.0.1.3.14.7.198.3SECTION 27.1505
   27.1505 Never-exceed speed.
14:1.0.1.3.14.7.198.4SECTION 27.1509
   27.1509 Rotor speed.
14:1.0.1.3.14.7.198.5SECTION 27.1519
   27.1519 Weight and center of gravity.
14:1.0.1.3.14.7.198.6SECTION 27.1521
   27.1521 Powerplant limitations.
14:1.0.1.3.14.7.198.7SECTION 27.1523
   27.1523 Minimum flight crew.
14:1.0.1.3.14.7.198.8SECTION 27.1525
   27.1525 Kinds of operations.
14:1.0.1.3.14.7.198.9SECTION 27.1527
   27.1527 Maximum operating altitude.
14:1.0.1.3.14.7.198.10SECTION 27.1529
   27.1529 Instructions for Continued Airworthiness.
14:1.0.1.3.14.7.199SUBJGRP 199
   Markings and Placards
14:1.0.1.3.14.7.199.11SECTION 27.1541
   27.1541 General.
14:1.0.1.3.14.7.199.12SECTION 27.1543
   27.1543 Instrument markings: general.
14:1.0.1.3.14.7.199.13SECTION 27.1545
   27.1545 Airspeed indicator.
14:1.0.1.3.14.7.199.14SECTION 27.1547
   27.1547 Magnetic direction indicator.
14:1.0.1.3.14.7.199.15SECTION 27.1549
   27.1549 Powerplant instruments.
14:1.0.1.3.14.7.199.16SECTION 27.1551
   27.1551 Oil quantity indicator.
14:1.0.1.3.14.7.199.17SECTION 27.1553
   27.1553 Fuel quantity indicator.
14:1.0.1.3.14.7.199.18SECTION 27.1555
   27.1555 Control markings.
14:1.0.1.3.14.7.199.19SECTION 27.1557
   27.1557 Miscellaneous markings and placards.
14:1.0.1.3.14.7.199.20SECTION 27.1559
   27.1559 Limitations placard.
14:1.0.1.3.14.7.199.21SECTION 27.1561
   27.1561 Safety equipment.
14:1.0.1.3.14.7.199.22SECTION 27.1565
   27.1565 Tail rotor.
14:1.0.1.3.14.7.200SUBJGRP 200
   Rotorcraft Flight Manual and Approved Manual Material
14:1.0.1.3.14.7.200.23SECTION 27.1581
   27.1581 General.
14:1.0.1.3.14.7.200.24SECTION 27.1583
   27.1583 Operating limitations.
14:1.0.1.3.14.7.200.25SECTION 27.1585
   27.1585 Operating procedures.
14:1.0.1.3.14.7.200.26SECTION 27.1587
   27.1587 Performance information.
14:1.0.1.3.14.7.200.27SECTION 27.1589
   27.1589 Loading information.
14:1.0.1.3.14.8SUBPART 0
14:1.0.1.3.14.9.201.1.21APPENDIX Appendix A
   Appendix A to Part 27 - Instructions for Continued Airworthiness
14:1.0.1.3.14.9.201.1.22APPENDIX Appendix B
   Appendix B to Part 27 - Airworthiness Criteria for Helicopter Instrument Flight
14:1.0.1.3.14.9.201.1.23APPENDIX Appendix C
   Appendix C to Part 27 - Criteria for Category A
14:1.0.1.3.14.9.201.1.24APPENDIX Appendix D
   Appendix D to Part 27 - HIRF Environments and Equipment HIRF Test Levels