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Swissair 111

Printed page viii. PDF page 8.

Susceptibility to Fire - Certification Standards . . . . . . . . . . . . . . . 211 2.3.1 Flammability of Materials . . . . . . . . . . . . . .
Open final report at PDF page 8TSB A98H0003: In-flight fire leading to collision with water

Swissair 111

Printed page ix. PDF page 9.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 4.1.10 Material Flammability Standards . . .
Open final report at PDF page 9TSB A98H0003: In-flight fire leading to collision with water

Swissair 111

Printed page 42. PDF page 54.

PTFE Cut-through resistance PI COMP ETFE PTFE Chemical resistance PTFE ETFE COMP PI Flammability PTFE COMP PI ETFE Smoke generation PI COMP PTFE ETFE Flexibility PTFE ETFE COMP PI Creep37 (at temperature) PI COMP PTFE ETFE Arc propagation (arc tracking)
Open final report at PDF page 54TSB A98H0003: In-flight fire leading to collision with water

Swissair 111

Printed page 105. PDF page 117.

the aviation standards in place at the time of the SR 111 occurrence with respect to flammability, fire detection and suppression, and firefighting. It also describes the nature of the fire and heat damage, as well as potential ignition sources
Open final report at PDF page 117TSB A98H0003: In-flight fire leading to collision with water

Swissair 111

Printed page 106. PDF page 118.

Therefore, to increase survivability, the FAA concentrated its efforts on improving the flammability standards for cabin interior materials to delay the onset of flashover. In-flight fires were considered to be rare, and the FAA concluded that the best defence against
Open final report at PDF page 118TSB A98H0003: In-flight fire leading to collision with water

Swissair 111

Printed page 107. PDF page 119.

tested. The following is a list of criteria that could be used to measure a material's flammability characteristics: Ignition time (how long it takes the material to ignite when exposed to the Bunsen burner flame; the tests typically use
Open final report at PDF page 119TSB A98H0003: In-flight fire leading to collision with water