title-14-part-25-sec25-853

304

14 CFR Ch. I (1–1–24 Edition)

§ 25.853

accessible for use in, each galley lo-
cated above or below the passenger
compartment.

(5) Each hand fire extinguisher must

be approved.

(6) At least one of the required fire

extinguishers located in the passenger
compartment of an airplane with a pas-
senger capacity of at least 31 and not
more than 60, and at least two of the
fire extinguishers located in the pas-
senger compartment of an airplane
with a passenger capacity of 61 or more
must contain Halon 1211
(bromochlorodifluoromethane CBrC

), or equivalent, as the extinguishing

agent. The type of extinguishing agent
used in any other extinguisher required
by this section must be appropriate for
the kinds of fires likely to occur where
used.

(7) The quantity of extinguishing

agent used in each extinguisher re-
quired by this section must be appro-
priate for the kinds of fires likely to
occur where used.

(8) Each extinguisher intended for

use in a personnel compartment must
be designed to minimize the hazard of
toxic gas concentration.

(b) Built-in fire extinguishers. If a

built-in fire extinguisher is provided—

(1) Each built-in fire extinguishing

system must be installed so that—

(i) No extinguishing agent likely to

enter personnel compartments will be
hazardous to the occupants; and

(ii) No discharge of the extinguisher

can cause structural damage.

(2) The capacity of each required

built-in fire extinguishing system must
be adequate for any fire likely to occur
in the compartment where used, con-
sidering the volume of the compart-
ment and the ventilation rate. The ca-
pacity of each system is adequate if
there is sufficient quantity of agent to
extinguish the fire or suppress the fire
anywhere baggage or cargo is placed
within the cargo compartment for the
duration required to land and evacuate
the airplane.

[Amdt. 25–74, 56 FR 15456, Apr. 16, 1991, as
amended by Doc. No. Docket FAA–2014–0001,
Amdt. 25–142, 81 FR 7703, Feb. 16, 2016]

§ 25.853

Compartment interiors.

For each compartment occupied by

the crew or passengers, the following
apply:

(a) Materials (including finishes or

decorative surfaces applied to the ma-
terials) must meet the applicable test
criteria prescribed in part I of appendix
F of this part, or other approved equiv-
alent methods, regardless of the pas-
senger capacity of the airplane.

(b) [Reserved]
(c) In addition to meeting the re-

quirements of paragraph (a) of this sec-
tion, seat cushions, except those on
flight crewmember seats, must meet
the test requirements of part II of ap-
pendix F of this part, or other equiva-
lent methods, regardless of the pas-
senger capacity of the airplane.

(d) Except as provided in paragraph

(e) of this section, the following inte-
rior components of airplanes with pas-
senger capacities of 20 or more must
also meet the test requirements of
parts IV and V of appendix F of this
part, or other approved equivalent
method, in addition to the flamma-
bility requirements prescribed in para-
graph (a) of this section:

(1) Interior ceiling and wall panels,

other than lighting lenses and win-
dows;

(2) Partitions, other than transparent

panels needed to enhance cabin safety;

(3) Galley structure, including ex-

posed surfaces of stowed carts and
standard containers and the cavity
walls that are exposed when a full com-
plement of such carts or containers is
not carried; and

(4) Large cabinets and cabin stowage

compartments, other than underseat
stowage compartments for stowing
small items such as magazines and
maps.

(e) The interiors of compartments,

such as pilot compartments, galleys,
lavatories, crew rest quarters, cabinets
and stowage compartments, need not
meet the standards of paragraph (d) of
this section, provided the interiors of
such compartments are isolated from
the main passenger cabin by doors or
equivalent means that would normally
be closed during an emergency landing
condition.

(f) Smoking is not allowed in lava-

tories. If smoking is allowed in any

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§ 25.855

area occupied by the crew or pas-
sengers, an adequate number of self-
contained, removable ashtrays must be
provided in designated smoking sec-
tions for all seated occupants.

(g) Regardless of whether smoking is

allowed in any other part of the air-
plane, lavatories must have self-con-
tained, removable ashtrays located
conspicuously on or near the entry side
of each lavatory door, except that one
ashtray may serve more than one lava-
tory door if the ashtray can be seen
readily from the cabin side of each lav-
atory served.

(h) Each receptacle used for the dis-

posal of flammable waste material
must be fully enclosed, constructed of
at least fire resistant materials, and
must contain fires likely to occur in it
under normal use. The capability of the
receptacle to contain those fires under
all probable conditions of wear, mis-
alignment, and ventilation expected in
service must be demonstrated by test.

[Amdt. 25–83, 60 FR 6623, Feb. 2, 1995, as
amended by Amdt. 25–116, 69 FR 62788, Oct.
27, 2004]

§ 25.854

Lavatory fire protection.

For airplanes with a passenger capac-

ity of 20 or more:

(a) Each lavatory must be equipped

with a smoke detector system or equiv-
alent that provides a warning light in
the cockpit, or provides a warning
light or audible warning in the pas-
senger cabin that would be readily de-
tected by a flight attendant; and

(b) Each lavatory must be equipped

with a built-in fire extinguisher for
each disposal receptacle for towels,
paper, or waste, located within the lav-
atory. The extinguisher must be de-
signed to discharge automatically into
each disposal receptacle upon occur-
rence of a fire in that receptacle.

[Amdt. 25–74, 56 FR 15456, Apr. 16, 1991]

§ 25.855

Cargo or baggage compart-

ments.

For each cargo or baggage compart-

ment, the following apply:

(a) The compartment must meet one

of the class requirements of § 25.857.

(b) Each of the following cargo or

baggage compartments, as defined in
§ 25.857, must have a liner that is sepa-

rate from, but may be attached to, the
airplane structure:

(1) Any Class B through Class E cargo

or baggage compartment, and

(2) Any Class F cargo or baggage

compartment, unless other means of
containing a fire and protecting crit-
ical systems and structure are pro-
vided.

of Class C cargo or baggage compart-
ments, and ceiling and sidewall liner
panels in Class F cargo or baggage
compartments, if installed to meet the
requirements of paragraph (b)(2) of this
section, must meet the test require-
ments of part III of appendix F of this
part or other approved equivalent
methods.

(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 ap-
pendix F of this part or other approved
equivalent methods.

(e) No compartment may contain any

controls, lines, equipment, or acces-
sories 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 compart-
ment, 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 com-

partment must be shielded and insu-
lated to prevent igniting the cargo or
baggage.

(h) Flight tests must be conducted to

show compliance with the provisions of
§ 25.857 concerning—

(1) Compartment accessibility,
(2) The entries of hazardous quan-

tities of smoke or extinguishing agent
into compartments occupied by the
crew or passengers, and

(3) The dissipation of the extin-

guishing agent in all Class C compart-
ments and, if applicable, in any Class F
compartments.

(i) During the above tests, it must be

shown that no inadvertent operation of
smoke or fire detectors in any com-
partment would occur as a result of