Reduction of Fuel Tank Flammability on Transport Category Airplanes

Design approval holders voluntarily use the flammability analysis documentation to demonstrate to their FAA Oversight Office that they are compliant with regulations by submitting semi-annual reports detailing component failures discovered during scheduled or unscheduled maintenance. The FAA safety oversight offices will use the collected data to determine if mandatory action should be initiated to correct any unsafe conditions resulting from poor reliability of the flammability reduction means (FRM) and the resulting increased flammability of the fuel tanks on transport category airplanes. High flammability fuel tanks are susceptible to catastrophic fuel tank explosions. Maintaining fuel tank FRM reliability results in the safety level intended by the adopted regulatory requirements for installation of FRM

The latest form for Reduction of Fuel Tank Flammability on Transport Category Airplanes expires 2023-04-30 and can be found here.