AC 23-24

Advisory circular · Airworthiness Compliance Checklists for Common Part 23 Supplemental Type Certificate (STC) Projects

Approved
August 24, 2005
Last reviewed
April 13, 2017
Family
AC 23-24 · 1 version
14 CFR parts
23

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed October 23, 2026.

Show pages 28–39

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks AC 23-24 8/24/05 Appendix 1

A1-10 A1-10

23.415 Ground gust conditions.

(3.233, 3.233-1) AN AC 23-19

HORIZONTAL STABILIZING

AND BALANCING SURFACES

23.421 Balancing loads. (3.215 and note) AN AC 23-19

23.423 Maneuvering loads. (3.216 and notes, 3.216-4 (a) and (b)) AN AC 23-19

23.425 Gust loads. (3.217 and notes) AN AC 23-19

23.427 Unsymmetrical loads. (3.218) AN AC 23-19

VERTICAL SURFACES

23.441 Maneuvering loads. (3.219 and notes) AN AC 23-19

23.443 Gust loads. (3.220) AN AC 23-19

23.445 Outboard fins or winglets.

(3.221) AN, GT AC 23-19

Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks 8/24/05 AC 23-24 AC 23-24 Appendix 1Appendix 1 A1-11 A1-11

AILERONS AND SPECIAL

DEVICES

23.455 Ailerons. (3.222(a), (b), and

(e)) AN AC 23-19

23.459 Special devices. (3.225) AN, GT AC 23-19

GROUND LOADS

23.471 General. (3.241) AN, GT AC 23-19

23.473 Ground load conditions and assumptions. (3.85-4 (last sent.),

3.242, 3.243) AN, GT AC 23-19

23.477 Landing gear arrangement.

(3.244) AN AC 23-19

23.479 Level landing conditions.

(3.245, 3.245-1(b)) AN, GT AC 23-19

23.481 Tail down landing conditions.

(3.246) AN, GT AC 23-19

23.483 One-wheel landing conditions.

(3.247) AN, GT AC 23-19

23.485 Side load conditions. (3.249) AN, GT AC 23-19

23.493 Braked roll conditions.

(3.248) AN, GT AC 23-19 Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks AC 23-24 8/24/05 Appendix 1

A1-12 A1-12

23.497 Supplementary conditions for tail wheels. (3.250, 3.251, 3.252) AN AC 23-19

23.499 Supplementary conditions for nose wheels. (3.253, 3.254, 3.255,

3.256) AN AC 23-19

23.505 Supplementary conditions for skiplanes. (3.257) AN AC 23-19

23.507 Jacking loads. AN AC 23-19

23.509 Towing loads. AN AC 23-19

23.511 Ground load; unsymmetrical loads on multiple-wheel units.

AN AC 23-19

WATER LOADS

23.521 Water load conditions. (3.265,

3.265-1(a), 3.265-2) AN, GT AC 23-19

23.523 Design weights and center of gravity positions.

AN, GT AC 23-19

23.525 Application of loads. AN AC 23-19

23.527 Hull and main float load factors.

AN AC 23-19

23.529 Hull and main float landing conditions.

AN AC 23-19

23.531 Hull and main float takeoff condition.

AN AC 23-19 Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks 8/24/05 AC 23-24 AC 23-24 Appendix 1Appendix 1 A1-13 A1-13

23.533 Hull and main float bottom pressures.

AN AC 23-19

23.535 Auxiliary float loads. AN AC 23-19

23.537 Seawing loads. AN, GT AC 23-19

EMERGENCY LANDING

CONDITIONS

23.561 General. AN, GT AC 23-19

23.562 Emergency landing dynamic conditions.

AN, GT AC 23-19, AC 23.562-1

FATIGUE EVALUATION

23.571 Metallic pressurized cabin structures. (3.270) AN, GT AC 23-19

23.572 Metallic wing, empennage, and associated structures.

AN, GT AC 23-19

23.573 Damage tolerance and fatigue evaluation of structure.

AN, GT AC 23-19, PS-ACE100-2001-006

23.574 Metallic damage tolerance and fatigue evaluation of commuter category airplanes.

AN, GT AC 23-19

23.575 Inspections and other procedures.

DE Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks AC 23-24 8/24/05 Appendix 1

A1-14 A1-14

Subpart D -- Design and Construction

23.601 General. (3.291) DE, AN, GT AC 23-19, PS-ACE100-2002-006, PS-ACE100-2001-006, PS-ACE100-2004-10039

23.603 Materials and workmanship.

(3.292) DE, AN, GT AC 23-19, PS-ACE100-2002-006, PS-ACE100-2001-006, PS-ACE100-2004-10039

23.605 Fabrication methods. (3.293) DE AC 23-19, PS-ACE100-2002-006, PS-ACE100-2001-006, PS-ACE100-2004-100399

23.607 Fasteners. (3.294 (last sent.)) DE AC 23-19, AC 23.607-1

23.609 Protection of structure.

(3.295) DE AC 23-19. PS-ACE100-2001-006, PS-ACE100-2004-10030

23.611 Accessibility provisions.

(3.296) DE AC 23-19

23.613 Material strength properties and design values. (3.301 and note) DE, AN, GT AC 23-19, PS-ACE100-2002-006, PS-ACE100-2001-006, PS-ACE100-2004-10030

23.619 Special factors. (3.302, 3.303) AN, GT AC 23-19

23.621 Casting factors. (3.304) AN, GT AC 23-19

23.623 Bearing factors. (3.305) AN AC 23-19

23.625 Fitting factors. (3.306) AN AC 23-19 Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks 8/24/05 AC 23-24 AC 23-24 Appendix 1Appendix 1 A1-15 A1-15

23.627 Fatigue strength. (3.307) AN AC 23-19

23.629 Flutter. (3.311, 3.11-1, 3.311- 2(a)) AN, GT, FT AC 23-19, AC 23.629-1B, PS-ACE100-2002-008

WINGS

23.641 Proof of strength. (3.317) AN, GT AC 23-19

CONTROL SURFACES

23.651 Proof of strength. (3.327) AN AC 23-19

23.655 Installation. (3.328) DE, AN AC 23-19

23.657 Hinges. (3.329) AN AC 23-19

23.659 Mass balance. (3.330) AN AC 23-19

CONTROL SYSTEMS

23.671 General. (3.335) DE, AN, GT, FT AC 23-8B, AC 23-17B, PS-ACE100-2001-004

23.672 Stability augmentation and automatic and power-operated systems.

DE, AN, GT, FT AC 23-8B, AC 23-17B, PS-ACE100-2001-004

23.673 Primary flight controls.

(3.336) DE AC 23-17B

23.675 Stops. DE, AN, FT AC 23-17B Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks AC 23-24 8/24/05 Appendix 1

A1-16 A1-16

23.677 Trim systems. (3.337) DE, AN, FT AC 23-8B, AC 23-17B, PS-ACE100-2001-004

23.679 Control system locks. DE, GT AC 23-8B, AC 23-17B, PS-ACE100-2001-004

23.681 Limit load static tests. AN or GT AC 23-17B

23.683 Operation tests. GT, FT AC 23-17B

23.685 Control system details. DE AC 23-17B

23.687 Spring devices. AN, GT, FT AC 23-17B

23.689 Cable systems. DE AC 23-17B

23.691 Artificial stall barrier system. AN, FT AC 23-8B, AC 23-17B

23.693 Joints. AN AC 23-17B

23.697 Wing flap controls. DE, FT AC 23-8B, AC 23-17B

23.699 Wing flap position indicator. GT, FT AC 23-8B, AC 23-17B

23.701 Flap interconnection. DE, AN, FT AC 23-8B, AC 23-17B

23.703 Takeoff warning system. DE, FT AC 23-17B

LANDING GEAR

23.721 General. AN or FT AC 23-17B

23.723 Shock absorption tests. AN or GT AC 23-17B

23.725 Limit drop tests. GT AC 23-17B

23.726 Ground load dynamic tests. AN or GT AC 23-17B

23.727 Reserve energy absorption drop test.

GT AC 23-17B Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks 8/24/05 AC 23-24 AC 23-24 Appendix 1Appendix 1 A1-17 A1-17

23.729 Landing gear extension and retraction system.

DE, AN, FT AC 23-8B, AC 23-17B

23.731 Wheels. DE, AN AC 23-17B

23.733 Tires. DE, AN AC 23-17B

23.735 Brakes. AN, GT, FT AC 23-8B, AC 23-17B

23.737 Skis. AN AC 23-17B

23.745 Nose/tail wheel steering. FT AC 23-17B

FLOATS AND HULLS

23.751 Main float buoyancy. DE, AN AC 23-17B

23.753 Main float design. AN, GT AC 23-17B

23.755 Hulls. DE, AN AC 23-17B

23.757 Auxiliary floats. AN AC 23-17B

PERSONNEL AND CARGO

ACCOMMODATIONS

23.771 Pilot compartment. DE, FT AC 23-8B, AC 23-17B, AC 23-1311-1A, PS-ACE100-2001-004

23.773 Pilot compartment view. GT, FT AC 23-8B, AC 23-17B, AC 23-1311-1A, PS-ACE100-2001-004

23.775 Windshields and windows. DE, GT AC 23-8B, AC 23-17B Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks AC 23-24 8/24/05 Appendix 1

A1-18 A1-18

23.777 Cockpit controls. DE, FT AC 23-8B, AC 23-17B, AC 23-1311-1A, PS-ACE100-2001-004

23.779 Motion and effect of cockpit controls. (Figure 3-14) DE, FT AC 23-17B

23.781 Cockpit control knob shape.

(Figure 3-13) DE AC 23-17B

23.783 Doors. (3.389) DE, AN, GT AC 23-17B

23.785 Seats, berths, litters, safety belts, and shoulder harnesses. (3.390,

3.390-2) DE, AN, GT AC 23-8B, AC 23-17B, PS-ACE100-2001-004

23.787 Baggage and cargo compartments. (3.392) DE, AN, GT AC 23-17B

23.791 Passenger information signs. DE, GT AC 23-17B

23.803 Emergency evacuation. GT AC 23-8B, AC 23-17B

23.805 Flightcrew emergency exits. DE, AN AC 23-17B

23.807 Emergency exits. DE, GT AC 23-8B, AC 23-17B

23.811 Emergency exit marking. DE, AN AC 23-17B

23.812 Emergency lighting. DE, AN, GT AC 23-17B

23.813 Emergency exit access. DE, AN AC 23-17B

23.815 Width of aisle. DE AC 23-17B

23.831 Ventilation. (3.393) AN, GT, FT AC 23-8B, AC 23-17B

Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks 8/24/05 AC 23-24 AC 23-24 Appendix 1Appendix 1

PRESSURIZATION

23.841 Pressurized cabins. (3.395) DE, AN, GT AC 23-8B, AC 23-17B

23.843 Pressurization tests. (3.396) GT, FT AC 23-8B, AC 23-17B

FIRE PROTECTION

23.851 Fire extinguishers. DE AC 23-17B

23.853 Passenger and crew compartment interiors.

AN, GT AC 23-2, AC 23-17B, PS-ACE100-2004-10023, PS-ACE100-2004-10030

23.855 Cargo and baggage compartment fire protection.

DE, GT AC 23-2, AC 23-17B

23.859 Combustion heater fire protection.

DE, AN, GT AC 23-17B

23.863 Flammable fluid fire protection.

DE and AN or GT AC 23-17B

23.865 Fire protection of flight controls, engine mounts, and other flight structure.

DE, AN, GT AC 23-17B

A1-19 A1-19 Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks AC 23-24 8/24/05 Appendix 1

A1-20 A1-20

ELECTRICAL BONDING AND

LIGHTNING PROTECTION

23.867 Electrical bonding and protection against lightning and static electricity.

DE, GT AC 23-17B, PS-ACE100-2004-10030

MISCELLANEOUS

23.871 Leveling means. (3.401) DE AC 23-17B

Subpart E -- Powerplant

GENERAL

23.901 Installation. (3.411) DE, AN, GT, FT AC 23-8B, AC 23-16A, AC 20-136, AC 23-1311-1A

23.903 Engines. (3.415) DE, AN, GT, FT AC 23-8B, AC 23-16A, AC 20-136

23.904 Automatic power reserve system.

AN, GT, FT AC 23-16A

23.905 Propellers. (3.416) DE, AN, GT, FT AC 23-8B, AC 23-16A

23.907 Propeller vibration. (3.417) AN, GT, FT AC 23-16A

23.909 Turbocharger systems. AN, GT, FT AC 23-8B, AC 23-16A Page ___ of ___

Supplemental Type Certificate Compliance Checklist Project Number: Date:

Originator: Revision:

*Methods of Compliance:

FT = Flight Test, GT = Ground Test, AN = Analysis, DE = Design, SI = Similarity, ELOS = Equivalent Level of Safety Finding, PExmpt = Petition for Exemption, N/A = Not Applicable Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks Regulation Title 14 CFR (1964 CAR 3) Applicable Amendment Method of Compliance* Plan, Drawing, Report Number Person or Entity Finding Compliance Applicable Guidance, References, & Remarks 8/24/05 AC 23-24 AC 23-24 Appendix 1Appendix 1

23.925 Propeller clearance. (3.422,

3.422-2) AN, GT AC 23-8B, AC 23-16A

23.929 Engine installation ice protection.

AN, GT, FT AC 23-8B, AC 23-16A

23.933 Reversing systems. AN, GT, FT AC 23-8B, AC 23-16A

23.934 Turbojet and turbofan engine thrust reverser systems tests.

AN, GT, FT AC 23-16A

23.937 Turbopropeller-drag limiting systems.

AN AC 23-16A

23.939 Powerplant operating characteristics.

AN, GT, FT AC 23-8B, AC 23-16A

23.943 Negative acceleration. FT AC 23-8B, AC 23-16A

FUEL SYSTEM

23.951 General. (3.429, 3.430) AN, GT, FT AC 23-16A

23.953 Fuel system independence.

(3.431) AN, GT, FT AC 23-16A

23.954 Fuel system lightning protection.

DE, AN AC 23-16A, AC 20-53A, AC 20-136

23.955 Fuel flow. (3.433, 3.434,

3.435, 3.436) DE, AN, GT AC 23-16A

23.957 Flow between interconnected tanks. (3.439) DE, AN, GT AC 23-16A A1-21 A1-21 Page ___ of ___