Flame resistant fabric for aviation airbags

A fabric for the construction of an airbag for installation in an aircraft, said fabric comprising:

• a high tenacity continuous polyester filament yarn, said high tenacity continuous polyester filament yarn comprising:
• a 500 denier-96 filament polyester fiber substrate;
• and
• an amount of phosphate-phosphonate compound in a range of about 0.1%-0.3% by weight;
• a plain weave utilizing said high tenacity continuous polyester filament yarn, characterized by a count of 49-53 per inch by 49-53 per inch, said plain weave having a first fabric side and a second fabric side, where said plain weave has been heat set to between 340 degrees Fahrenheit to 420 degrees Fahrenheit for a period of time of about 30 to 60 seconds;
• and
• a composition comprising polyurethane with flame retardant additives, said composition applied as a coating to the first fabric side and the second fabric side at a coating weight of between 25-50 grams per square meter;
• wherein said fabric, when subjected to aviation vertical flammability requirements, is characterized as:
• being self-extinguishing;
• having an average burn length not exceeding 8 inches;
• having an average flame time after removal of the flame source not exceeding 15 seconds;
• and having drippings that do not continue to flame for more than 5 seconds after falling;
• and is further characterized as exhibiting a high pressure permeability resistance characterized as a pressure of not less than 198 kPa after five seconds from an initial inflation and pressurization to 200 kPa.