402 

14 CFR Ch. I (1–1–19 Edition) 

Pt. 25, App. F 

Part III—Test Method To Determine Flame Pen-

etration Resistance of Cargo Compartment 
Liners. 

(a) 

Criteria for Acceptance. 

(1) At least three 

specimens of cargo compartment sidewall or 
ceiling liner panels must be tested. 

(2) Each specimen tested must simulate 

the cargo compartment sidewall or ceiling 
liner panel, including any design features, 

such as joints, lamp assemblies, etc., the 
failure of which would affect the capability 
of the liner to safely contain a fire. 

(3) There must be no flame penetration of 

any specimen within 5 minutes after applica-
tion of the flame source, and the peak tem-
perature measured at 4 inches above the 
upper surface of the horizontal test sample 
must not exceed 400 

°

F. 

VerDate Sep<11>2014 

12:50 Apr 30, 2019

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