What’s “Liner”?

[Ref Aviation Maintenance Technician Handbook–Airframe, Volume 2 (FAA-H-8083-31A) Chapter 17, AERO QTR_02.11, FAA AC No: 25.857-1]

What’s “Liner/ Liners”?

Liner is the inner sidewall have sufficient fire integrity and separate from the aircraft structure


You may see “liner” in the topic of fire protection system. In AERO QTR_02.11:

Liners – The liner must be separate from (but may be attached to) the airplane structure (see fig. 3). Ceiling and sidewall liner panels of ….

According to FAA AC No: 25.857-1:

  • liner MUST have sufficient fire integrity – resistance to flame and temperature penetration
  • liner MUST be separate from the airplane structure except for points of attachment
  • liner does not need to serve as the compartment seal

Indeed, “liner” could be interpret as : Liner is the inner sidewall have sufficient fire integrity and separate from the aircraft structure

Read More –

How high of temperature can the liner (sidewall) sustain in modern jetliner?

 

 

#side #wall #sidewall #side-wall

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