FAA AC 25.981-2 : 0

1. Purpose
2. Applicability
3. Cancellation
4. Related Documents
5. Definitions
6. Regulatory Background
7. Current Requirements
8. Compliance Demonstration
9. General Considerations - Fuel Tank Flammability
10. Determining Fuel Tank Flammability
11. Flammability Reduction Means
12. Ignition Mitigation Means (IMM)
APPENDIX 1 - LIST OF SECTION 26.33(a) AFFECTED MODELS/FAA
             OVERSIGHT OFFICES
APPENDIX 2 - DEVELOPING CRITICAL DESIGN CONFIGURATION CONTROL
             LIMITATIONS - FUEL TANK FLAMMABILITY
APPENDIX 3 - COMPLIANCE WITH PART 26, SUBPART D, SECTIONS
             26.33 AND 26.35
APPENDIX 4 - CONSIDERATIONS FOR FUEL TANK THERMAL MODELS

Describes information and guidance on compliance with the airworthiness standards for transport category airplanes about limiting the time a fuel tank may be flammable or mitigation of hazards from flammable fuel air mixtures within fuel tanks.