Text in force at 23-63: from 23-62, effective 31 Jan 2012.
Thermal/acoustic insulation material installed in the fuselage must meet the flame propagation test requirements of part II of Appendix F to this part, or other approved equivalent test requirements. This requirement does not apply to "small parts," as defined in Sec. 23.853(d)(3)(v). -
76 FR 75759 · Source