AC 120-98 – Operator Requirements for Incorporation of Fuel Tank Flammability Reduction Requirements provides information and describes an acceptable means of compliance for operators to comply with the fuel tank flammability safety requirements of Title 14 of the Code of Federal Regulations (14 CFR) parts 121, 125, 129 and 14 CFR as amended by the [...]
This advisory circular (AC) sets forth an acceptable means, but not the only
means, of demonstrating compliance with the provisions of the airworthiness standards for transport category airplanes related to the airplane design for flightdeck (also referred to as the pilot compartment or cockpit) intrusion resistance. Intrusion resistance, in the context of this AC, refers to the ability to resist forced entry by a person who is not authorized by the pilot in command to