|
Section 25.1
|
Special retroactive requirements |
|
Section 25.2
|
Special provisions for ETOPS type design approvals |
|
Section 25.3
|
Incorporations by reference |
|
Section 25.5
|
Proof of compliance |
|
Section 25.21
|
Proof of compliance |
|
Section 25.21
|
Load distribution limits |
|
Section 25.23
|
Weight limits |
|
Section 25.25
|
Center of gravity limits |
|
Section 25.27
|
Empty weight and corresponding center of gravity |
|
Section 25.29
|
Removable ballast |
|
Section 25.31
|
Propeller speed and pitch limits |
|
Section 25.33
|
General |
|
Section 25.101
|
Stall speed |
|
Section 25.103
|
Takeoff |
|
Section 25.105
|
Takeoff |
|
Section 25.105
|
Takeoff speeds |
|
Section 25.107
|
Accelerate-stop distance |
|
Section 25.109
|
Takeoff path |
|
Section 25.111
|
Takeoff path |
|
Section 25.111
|
Takeoff distance and takeoff run |
|
Section 25.113
|
Takeoff flight path |
|
Section 25.115
|
Climb: general |
|
Section 25.117
|
Landing climb: All-engines-operating |
|
Section 25.119
|
Landing climb: All-engines-operating |
|
Section 25.119
|
Climb: One-engine-inoperative |
|
Section 25.121
|
Climb: One-engine-inoperative |
|
Section 25.121
|
En route flight paths |
|
Section 25.123
|
En route flight paths |
|
Section 25.123
|
Landing |
|
Section 25.125
|
Landing |
|
Section 25.125
|
General |
|
Section 25.143
|
General |
|
Section 25.143
|
Longitudinal control |
|
Section 25.145
|
Directional and lateral control |
|
Section 25.147
|
Minimum control speed |
|
Section 25.149
|
Trim |
|
Section 25.161
|
General |
|
Section 25.171
|
Static longitudinal stability |
|
Section 25.173
|
Demonstration of static longitudinal stability |
|
Section 25.175
|
Static lateral-directional stability |
|
Section 25.177
|
Dynamic stability |
|
Section 25.181
|
Stall demonstration |
|
Section 25.201
|
Stall characteristics |
|
Section 25.203
|
Stall warning |
|
Section 25.207
|
Stall warning |
|
Section 25.207
|
Longitudinal stability and control |
|
Section 25.231
|
Directional stability and control |
|
Section 25.233
|
Taxiing condition |
|
Section 25.235
|
Wind velocities |
|
Section 25.237
|
Wind velocities |
|
Section 25.237
|
Spray characteristics, control, and stability on water |
|
Section 25.239
|
Vibration and buffeting |
|
Section 25.251
|
High-speed characteristics |
|
Section 25.253
|
High-speed characteristics |
|
Section 25.253
|
Out-of-trim characteristics |
|
Section 25.255
|
Loads |
|
Section 25.301
|
Factor of safety |
|
Section 25.303
|
Strength and deformation |
|
Section 25.305
|
Proof of structure |
|
Section 25.307
|
General |
|
Section 25.321
|
Symmetric maneuvering conditions |
|
Section 25.331
|
Symmetric maneuvering conditions |
|
Section 25.331
|
Flight maneuvering envelope |
|
Section 25.333
|
Design airspeeds |
|
Section 25.335
|
Limit maneuvering load factors |
|
Section 25.337
|
Gust and turbulence loads |
|
Section 25.341
|
Gust and turbulence loads |
|
Section 25.341
|
Design fuel and oil loads |
|
Section 25.343
|
Design fuel and oil loads |
|
Section 25.343
|
High lift devices |
|
Section 25.345
|
High lift devices |
|
Section 25.345
|
Rolling conditions |
|
Section 25.349
|
Yaw maneuver conditions |
|
Section 25.351
|
Engine torque |
|
Section 25.361
|
Engine and auxiliary power unit torque |
|
Section 25.361
|
Engine failure loads |
|
Section 25.362
|
Side load on engine and auxiliary power unit mounts |
|
Section 25.363
|
Pressurized compartment loads |
|
Section 25.365
|
Unsymmetrical loads due to engine failure |
|
Section 25.367
|
Gyroscopic loads |
|
Section 25.371
|
Gyroscopic loads |
|
Section 25.371
|
Speed control devices |
|
Section 25.373
|
Speed control devices |
|
Section 25.373
|
Control surface loads: General |
|
Section 25.391
|
Control surface loads: General |
|
Section 25.391
|
Loads parallel to hinge line |
|
Section 25.393
|
Control system |
|
Section 25.395
|
Control system |
|
Section 25.395
|
Control system loads |
|
Section 25.397
|
Dual control system |
|
Section 25.399
|
Secondary control system |
|
Section 25.405
|
Trim tab effects |
|
Section 25.407
|
Tabs |
|
Section 25.409
|
Ground gust conditions |
|
Section 25.415
|
Ground gust conditions |
|
Section 25.415
|
Auxiliary aerodynamic surfaces |
|
Section 25.445
|
Wing flaps |
|
Section 25.457
|
Special devices |
|
Section 25.459
|
General |
|
Section 25.471
|
Landing load conditions and assumptions |
|
Section 25.473
|
Landing gear arrangement |
|
Section 25.477
|
Level landing conditions |
|
Section 25.479
|
Tail-down landing conditions |
|
Section 25.481
|
One-gear landing conditions |
|
Section 25.483
|
Side load conditions |
|
Section 25.485
|
Rebound landing condition |
|
Section 25.487
|
Ground handling conditions |
|
Section 25.489
|
Taxi, takeoff and landing roll |
|
Section 25.491
|
Braked roll conditions |
|
Section 25.493
|
Turning |
|
Section 25.495
|
Tail-wheel yawing |
|
Section 25.497
|
Nose-wheel yaw and steering |
|
Section 25.499
|
Pivoting |
|
Section 25.503
|
Reversed braking |
|
Section 25.507
|
Towing loads |
|
Section 25.509
|
Ground load: unsymmetrical loads on multiple-wheel units |
|
Section 25.511
|
Jacking and tie-down provisions |
|
Section 25.519
|
General |
|
Section 25.521
|
Design weights and center of gravity positions |
|
Section 25.523
|
Application of loads |
|
Section 25.525
|
Hull and main float load factors |
|
Section 25.527
|
Hull and main float landing conditions |
|
Section 25.529
|
Hull and main float takeoff condition |
|
Section 25.531
|
Hull and main float bottom pressures |
|
Section 25.533
|
Auxiliary float loads |
|
Section 25.535
|
Seawing loads |
|
Section 25.537
|
General |
|
Section 25.561
|
Emergency landing dynamic conditions |
|
Section 25.562
|
Structural ditching provisions |
|
Section 25.563
|
Damage--tolerance and fatigue evaluation of structure |
|
Section 25.571
|
Lightning protection |
|
Section 25.581
|
General |
|
Section 25.601
|
Materials |
|
Section 25.603
|
Fabrication methods |
|
Section 25.605
|
Fasteners |
|
Section 25.607
|
Protection of structure |
|
Section 25.609
|
Accessibility provisions |
|
Section 25.611
|
Material strength properties and material design values |
|
Section 25.613
|
Special factors |
|
Section 25.619
|
Casting factors |
|
Section 25.621
|
Bearing factors |
|
Section 25.623
|
Fitting factors |
|
Section 25.625
|
Aeroelastic stability requirements |
|
Section 25.629
|
Bird strike damage |
|
Section 25.631
|
Proof of strength |
|
Section 25.651
|
Installation |
|
Section 25.655
|
Hinges |
|
Section 25.657
|
General |
|
Section 25.671
|
Stability augmentation and automatic and power-operated systems |
|
Section 25.672
|
Stops |
|
Section 25.675
|
Trim systems |
|
Section 25.677
|
Control system gust locks |
|
Section 25.679
|
Limit load static tests |
|
Section 25.681
|
Operation tests |
|
Section 25.683
|
Control system details |
|
Section 25.685
|
Cable systems |
|
Section 25.689
|
Joints |
|
Section 25.693
|
Lift and drag devices, controls |
|
Section 25.697
|
Lift and drag device indicator |
|
Section 25.699
|
Flap and slat interconnection |
|
Section 25.701
|
Takeoff warning system |
|
Section 25.703
|
General |
|
Section 25.721
|
Shock absorption tests |
|
Section 25.723
|
Retracting mechanism |
|
Section 25.729
|
Wheels |
|
Section 25.731
|
Tires |
|
Section 25.733
|
Brakes and braking systems |
|
Section 25.735
|
Skis |
|
Section 25.737
|
Main float buoyancy |
|
Section 25.751
|
Main float design |
|
Section 25.753
|
Hulls |
|
Section 25.755
|
Pilot compartment |
|
Section 25.771
|
Pilot compartment doors |
|
Section 25.772
|
Pilot compartment view |
|
Section 25.773
|
Pilot compartment view |
|
Section 25.773
|
Windshields and windows |
|
Section 25.775
|
Cockpit controls |
|
Section 25.777
|
Motion and effect of cockpit controls |
|
Section 25.779
|
Cockpit control knob shape |
|
Section 25.781
|
Fuselage doors |
|
Section 25.783
|
Seats, berths, safety belts, and harnesses |
|
Section 25.785
|
Stowage compartments |
|
Section 25.787
|
Retention of items of mass in passenger and crew compartments and galleys |
|
Section 25.789
|
Passenger information signs and placards |
|
Section 25.791
|
Floor surfaces |
|
Section 25.793
|
Security considerations |
|
Section 25.795
|
Ditching |
|
Section 25.801
|
Emergency evacuation |
|
Section 25.803
|
Emergency exits |
|
Section 25.807
|
Emergency exit arrangement |
|
Section 25.809
|
Emergency egress assist means and escape routes |
|
Section 25.810
|
Emergency exit marking |
|
Section 25.811
|
Emergency lighting |
|
Section 25.812
|
Emergency exit access |
|
Section 25.813
|
Width of aisle |
|
Section 25.815
|
Maximum number of seats abreast |
|
Section 25.817
|
Lower deck service compartments (including galleys) |
|
Section 25.819
|
Lavatory doors |
|
Section 25.820
|
Ventilation |
|
Section 25.831
|
Cabin ozone concentration |
|
Section 25.832
|
Combustion heating systems |
|
Section 25.833
|
Pressurized cabins |
|
Section 25.841
|
Tests for pressurized cabins |
|
Section 25.843
|
Fire extinguishers |
|
Section 25.851
|
Compartment interiors |
|
Section 25.853
|
Lavatory fire protection |
|
Section 25.854
|
Cargo or baggage compartments |
|
Section 25.855
|
Thermal/Acoustic insulation materials |
|
Section 25.856
|
Cargo compartment classification |
|
Section 25.857
|
Cargo or baggage compartment smoke or fire detection systems |
|
Section 25.858
|
Combustion heater fire protection |
|
Section 25.859
|
Flammable fluid fire protection |
|
Section 25.863
|
Fire protection of flight controls, engine mounts, and other flight structure |
|
Section 25.865
|
Fire protection: other components |
|
Section 25.867
|
Fire protection: systems |
|
Section 25.869
|
Leveling means |
|
Section 25.871
|
Reinforcement near propellers |
|
Section 25.875
|
Electrical bonding and protection against static electricity |
|
Section 25.899
|
Installation |
|
Section 25.901
|
Engines |
|
Section 25.903
|
Engines |
|
Section 25.903
|
Automatic takeoff thrust control system (ATTCS) |
|
Section 25.904
|
Propellers |
|
Section 25.905
|
Propeller vibration and fatigue |
|
Section 25.907
|
Propeller clearance |
|
Section 25.925
|
Propeller deicing |
|
Section 25.929
|
Propeller deicing |
|
Section 25.929
|
Reversing systems |
|
Section 25.933
|
Turbojet engine thrust reverser system tests |
|
Section 25.934
|
Turbopropeller-drag limiting systems |
|
Section 25.937
|
Turbine engine operating characteristics |
|
Section 25.939
|
Inlet, engine, and exhaust compatibility |
|
Section 25.941
|
Negative acceleration |
|
Section 25.943
|
Thrust or power augmentation system |
|
Section 25.945
|
General |
|
Section 25.951
|
Fuel system analysis and test |
|
Section 25.952
|
Fuel system independence |
|
Section 25.953
|
Fuel system lightning protection |
|
Section 25.954
|
Fuel flow |
|
Section 25.955
|
Flow between interconnected tanks |
|
Section 25.957
|
Unusable fuel supply |
|
Section 25.959
|
Fuel system hot weather operation |
|
Section 25.961
|
Fuel tanks: general |
|
Section 25.963
|
Fuel tank tests |
|
Section 25.965
|
Fuel tank installations |
|
Section 25.967
|
Fuel tank expansion space |
|
Section 25.969
|
Fuel tank sump |
|
Section 25.971
|
Fuel tank filler connection |
|
Section 25.973
|
Fuel tank vents and carburetor vapor vents |
|
Section 25.975
|
Fuel tank outlet |
|
Section 25.977
|
Pressure fueling system |
|
Section 25.979
|
Fuel tank ignition prevention |
|
Section 25.981
|
Fuel pumps |
|
Section 25.991
|
Fuel system lines and fittings |
|
Section 25.993
|
Fuel system components |
|
Section 25.994
|
Fuel valves |
|
Section 25.995
|
Fuel strainer or filter |
|
Section 25.997
|
Fuel system drains |
|
Section 25.999
|
Fuel jettisoning system |
|
Section 25.1001
|
General |
|
Section 25.1011
|
Oil tanks |
|
Section 25.1013
|
Oil tank tests |
|
Section 25.1015
|
Oil lines and fittings |
|
Section 25.1017
|
Oil strainer or filter |
|
Section 25.1019
|
Oil system drains |
|
Section 25.1021
|
Oil radiators |
|
Section 25.1023
|
Oil valves |
|
Section 25.1025
|
Propeller feathering system |
|
Section 25.1027
|
General |
|
Section 25.1041
|
Cooling tests |
|
Section 25.1043
|
Cooling test procedures |
|
Section 25.1045
|
Air induction |
|
Section 25.1091
|
Induction system icing protection |
|
Section 25.1093
|
Induction system icing protection |
|
Section 25.1093
|
Carburetor air preheater design |
|
Section 25.1101
|
Induction system ducts and air duct systems |
|
Section 25.1103
|
Induction system screens |
|
Section 25.1105
|
Inter-coolers and after-coolers |
|
Section 25.1107
|
General |
|
Section 25.1121
|
Exhaust piping |
|
Section 25.1123
|
Exhaust heat exchangers |
|
Section 25.1125
|
Exhaust driven turbo-superchargers |
|
Section 25.1127
|
Powerplant controls: general |
|
Section 25.1141
|
Auxiliary power unit controls |
|
Section 25.1142
|
Engine controls |
|
Section 25.1143
|
Ignition switches |
|
Section 25.1145
|
Mixture controls |
|
Section 25.1147
|
Propeller speed and pitch controls |
|
Section 25.1149
|
Propeller feathering controls |
|
Section 25.1153
|
Reverse thrust and propeller pitch settings below the flight regime |
|
Section 25.1155
|
Carburetor air temperature controls |
|
Section 25.1157
|
Supercharger controls |
|
Section 25.1159
|
Fuel jettisoning system controls |
|
Section 25.1161
|
Powerplant accessories |
|
Section 25.1163
|
Engine ignition systems |
|
Section 25.1165
|
Accessory gearboxes |
|
Section 25.1167
|
Designated fire zones; regions included |
|
Section 25.1181
|
Nacelle areas behind firewalls, and engine pod attaching structures containing flammable fluid lines |
|
Section 25.1182
|
Flammable fluid-carrying components |
|
Section 25.1183
|
Flammable fluids |
|
Section 25.1185
|
Drainage and ventilation of fire zones |
|
Section 25.1187
|
Shutoff means |
|
Section 25.1189
|
Firewalls |
|
Section 25.1191
|
Engine accessory section diaphragm |
|
Section 25.1192
|
Cowling and nacelle skin |
|
Section 25.1193
|
Fire extinguishing systems |
|
Section 25.1195
|
Fire extinguishing agents |
|
Section 25.1197
|
Extinguishing agent containers |
|
Section 25.1199
|
Fire extinguishing system materials |
|
Section 25.1201
|
Fire detector system |
|
Section 25.1203
|
Compliance |
|
Section 25.1207
|
Function and installation |
|
Section 25.1301
|
Installed systems and equipment for use by the flightcrew |
|
Section 25.1302
|
Flight and navigation instruments |
|
Section 25.1303
|
Powerplant instruments |
|
Section 25.1305
|
Miscellaneous equipment |
|
Section 25.1307
|
Equipment, systems, and installations |
|
Section 25.1309
|
Power source capacity and distribution |
|
Section 25.1310
|
Electrical and electronic system lightning protection |
|
Section 25.1316
|
High-intensity Radiated Fields (HIRF) Protection |
|
Section 25.1317
|
Arrangement and visibility |
|
Section 25.1321
|
Flightcrew alerting |
|
Section 25.1322
|
Airspeed indicating system |
|
Section 25.1323
|
Airspeed indicating system |
|
Section 25.1323
|
Angle of attack system |
|
Section 25.1324
|
Static pressure systems |
|
Section 25.1325
|
Static pressure systems |
|
Section 25.1325
|
Pitot heat indication systems |
|
Section 25.1326
|
Magnetic direction indicator |
|
Section 25.1327
|
Flight guidance system |
|
Section 25.1329
|
Instruments using a power supply |
|
Section 25.1331
|
Instrument systems |
|
Section 25.1333
|
Powerplant instruments |
|
Section 25.1337
|
General |
|
Section 25.1351
|
Electrical equipment and installations |
|
Section 25.1353
|
Distribution system |
|
Section 25.1355
|
Circuit protective devices |
|
Section 25.1357
|
Precautions against injury |
|
Section 25.1360
|
Electrical supplies for emergency conditions |
|
Section 25.1362
|
Electrical system tests |
|
Section 25.1363
|
Electrical appliances, motors, and transformers |
|
Section 25.1365
|
Instrument lights |
|
Section 25.1381
|
Landing lights |
|
Section 25.1383
|
Position light system installation |
|
Section 25.1385
|
Position light system dihedral angles |
|
Section 25.1387
|
Position light distribution and intensities |
|
Section 25.1389
|
Minimum intensities in the horizontal plane of forward and rear position lights |
|
Section 25.1391
|
Minimum intensities in any vertical plane of forward and rear position lights |
|
Section 25.1393
|
Maximum intensities in overlapping beams of forward and rear position lights |
|
Section 25.1395
|
Color specifications |
|
Section 25.1397
|
Riding light |
|
Section 25.1399
|
Anticollision light system |
|
Section 25.1401
|
Wing icing detection lights |
|
Section 25.1403
|
General |
|
Section 25.1411
|
Ditching equipment |
|
Section 25.1415
|
Ice protection |
|
Section 25.1419
|
Supercooled large drop icing conditions |
|
Section 25.1420
|
Megaphones |
|
Section 25.1421
|
Public address system |
|
Section 25.1423
|
Electronic equipment |
|
Section 25.1431
|
Vacuum systems |
|
Section 25.1433
|
Hydraulic systems |
|
Section 25.1435
|
Pressurization and pneumatic systems |
|
Section 25.1438
|
Protective breathing equipment |
|
Section 25.1439
|
Oxygen equipment and supply |
|
Section 25.1441
|
Minimum mass flow of supplemental oxygen |
|
Section 25.1443
|
Equipment standards for the oxygen distributing system |
|
Section 25.1445
|
Equipment standards for oxygen dispensing units |
|
Section 25.1447
|
Means for determining use of oxygen |
|
Section 25.1449
|
Chemical oxygen generators |
|
Section 25.1450
|
Protection of oxygen equipment from rupture |
|
Section 25.1453
|
Draining of fluids subject to freezing |
|
Section 25.1455
|
Cockpit voice recorders |
|
Section 25.1457
|
Flight data recorders |
|
Section 25.1459
|
Equipment containing high energy rotors |
|
Section 25.1461
|
General |
|
Section 25.1501
|
Airspeed limitations: general |
|
Section 25.1503
|
Maximum operating limit speed |
|
Section 25.1505
|
Maneuvering speed |
|
Section 25.1507
|
Flap extended speed |
|
Section 25.1511
|
Minimum control speed |
|
Section 25.1513
|
Landing gear speeds |
|
Section 25.1515
|
Other speed limitations |
|
Section 25.1516
|
Rough air speed, VRA |
|
Section 25.1517
|
Rough air speed, VRA |
|
Section 25.1517
|
Weight, center of gravity, and weight distribution |
|
Section 25.1519
|
Powerplant limitations |
|
Section 25.1521
|
Powerplant limitations |
|
Section 25.1521
|
Auxiliary power unit limitations |
|
Section 25.1522
|
Minimum flight crew |
|
Section 25.1523
|
Kinds of operation |
|
Section 25.1525
|
Ambient air temperature and operating altitude |
|
Section 25.1527
|
Instructions for Continued Airworthiness |
|
Section 25.1529
|
Maneuvering flight load factors |
|
Section 25.1531
|
Additional operating limitations |
|
Section 25.1533
|
Additional operating limitations |
|
Section 25.1533
|
ETOPS approval |
|
Section 25.1535
|
General |
|
Section 25.1541
|
Instrument markings: general |
|
Section 25.1543
|
Airspeed limitation information |
|
Section 25.1545
|
Magnetic direction indicator |
|
Section 25.1547
|
Powerplant and auxiliary power unit instruments |
|
Section 25.1549
|
Oil quantity indication |
|
Section 25.1551
|
Fuel quantity indicator |
|
Section 25.1553
|
Control markings |
|
Section 25.1555
|
Miscellaneous markings and placards |
|
Section 25.1557
|
Safety equipment |
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Section 25.1561
|
Airspeed placard |
|
Section 25.1563
|
General |
|
Section 25.1581
|
Operating limitations |
|
Section 25.1583
|
Operating procedures |
|
Section 25.1585
|
Performance information |
|
Section 25.1587
|
Definition |
|
Section 25.1701
|
Function and installation: EWIS |
|
Section 25.1703
|
Systems and functions: EWIS |
|
Section 25.1705
|
System separation: EWIS |
|
Section 25.1707
|
System safety: EWIS |
|
Section 25.1709
|
Component identification: EWIS |
|
Section 25.1711
|
Fire protection: EWIS |
|
Section 25.1713
|
Electrical bonding and protection against static electricity: EWIS |
|
Section 25.1715
|
Circuit protective devices: EWIS |
|
Section 25.1717
|
Accessibility provisions: EWIS |
|
Section 25.1719
|
Protection of EWIS |
|
Section 25.1721
|
Flammable fluid fire protection: EWIS |
|
Section 25.1723
|
Powerplants: EWIS |
|
Section 25.1725
|
Flammable fluid shutoff means: EWIS |
|
Section 25.1727
|
Instructions for Continued Airworthiness: EWIS |
|
Section 25.1729
|
Powerplant and APU fire detector system: EWIS |
|
Section 25.1731
|
Fire detector systems, general: EWIS |
|
Section 25.1733
|
SFAR No |
|
Section 25.1801
|
Purpose and scope |