CS 25.855 Cargo or baggage compartments

ED Decision 2013/010/R

(See AMC 25.855 and 25.857)

For each cargo or baggage compartment, the following apply:

(a)     The compartment must meet one of the class requirements of CS 25.857.

(b)     The following cargo or baggage compartments, as defined in CS 25.857, must have a liner that is separate from, but may be attached to, the aeroplane structure:

(1)      Class B through Class E cargo or baggage compartments; and

(2)      Class F cargo or baggage compartments, unless other means of containing the fire and protecting critical systems and structure are provided.

(c)      (1)     Ceiling and sidewall liner panels of Class C cargo or baggage compartments, and ceiling and sidewall liner panels in Class F cargo or baggage compartments, if installed to meet the requirements of sub-paragraph (b)(2) of this paragraph, must meet the test requirements of Part III of Appendix F or other approved equivalent methods.

(2)      Cockpit voice and flight data recorder systems, windows and systems or equipment within, or in the vicinity of, Class E cargo compartments shown to be essential for continued safe flight and landing according to CS 25.1309 must be adequately protected against fire. If protective covers are used, they must meet the requirements of Appendix F, Part III

(d)     All other materials used in the construction of the cargo or baggage compartment must meet the applicable test criteria prescribed in Part I of Appendix F, or other approved equivalent methods.

(e)     No compartment may contain any controls, lines, equipment, or accessories whose damage or failure would affect safe operation, unless those items are protected so that –

(1)     They cannot be damaged by the movement of cargo in the compartment; and

(2)     Their breakage or failure will not create a fire hazard.

(f)      There must be means to prevent cargo or baggage from interfering with the functioning of the fire protective features of the compartment.

(g)     Sources of heat within the compartment must be shielded and insulated to prevent igniting the cargo or baggage.

(h)     Flight tests must be conducted to show compliance with the provisions of CS 25.857 concerning –

(1)     Compartment accessibility;

(2)     The entry of hazardous quantities of smoke or extinguishing agent into compartments occupied by the crew or passengers; and

(3)     The dissipation of the extinguishing agent in Class C compartment or, if applicable, in Class F compartment.

(i)      During the above tests, it must be shown that no inadvertent operation of smoke or fire detectors in any compartment would occur as a result of fire contained in any other compartment, either during or after extinguishment, unless the extinguishing system floods each such compartment simultaneously.

(j)      Cargo or baggage compartment electrical wiring interconnection system components must meet the requirements of CS 25.1721.

[Amdt 25/3]

[Amdt 25/5]

[Amdt 25/8]

[Amdt 25/12]

[Amdt 25/13]