265 

Federal Aviation Administration, DOT 

§ 23.853 

(ii) Be so constructed that the crew 

can turn the illumination on and off; 
and 

(d) In addition, for commuter cat-

egory airplanes the following require-
ments apply: 

(1) Each disposal receptacle for tow-

els, paper, or waste must be fully en-
closed and constructed of at least fire 
resistant materials and must contain 
fires likely to occur in it under normal 
use. The ability of the disposal recep-
tacle to contain those fires under all 
probable conditions of wear, misalign-
ment, and ventilation expected in serv-
ice must be demonstrated by test. A 
placard containing the legible words 
‘‘No Cigarette Disposal’’ must be lo-
cated on or near each disposal recep-
tacle door. 

(2) Lavatories must have ‘‘No Smok-

ing’’ or ‘‘No Smoking in Lavatory’’ 
placards located conspicuously on each 
side of the entry door. 

(3) Materials (including finishes or 

decorative surfaces applied to the ma-
terials) used in each compartment oc-
cupied by the crew or passengers must 
meet the following test criteria as ap-
plicable: 

(i) Interior ceiling panels, interior 

wall panels, partitions, galley struc-
ture, large cabinet walls, structural 
flooring, and materials used in the con-
struction of stowage compartments 
(other than underseat stowage com-
partments and compartments for stow-
ing small items such as magazines and 
maps) must be self-extinguishing when 
tested vertically in accordance with 
the applicable portions of appendix F 
of this part or by other equivalent 
methods. The average burn length may 
not exceed 6 inches and the average 
flame time after removal of the flame 
source may not exceed 15 seconds. 
Drippings from the test specimen may 
not continue to flame for more than an 
average of 3 seconds after falling. 

(ii) Floor covering, textiles (includ-

ing draperies and upholstery), seat 
cushions, padding, decorative and non-
decorative coated fabrics, leather, 
trays and galley furnishings, electrical 
conduit, thermal and acoustical insula-
tion and insulation covering, air duct-
ing, joint and edge covering, cargo 
compartment liners, insulation blan-
kets, cargo covers and transparencies, 

molded and thermoformed parts, air 
ducting joints, and trim strips (decora-
tive and chafing), that are constructed 
of materials not covered in paragraph 
(d)(3)(iv) of this section must be self ex-
tinguishing when tested vertically in 
accordance with the applicable por-
tions of appendix F of this part or 
other approved equivalent methods. 
The average burn length may not ex-
ceed 8 inches and the average flame 
time after removal of the flame source 
may not exceed 15 seconds. Drippings 
from the test specimen may not con-
tinue to flame for more than an aver-
age of 5 seconds after falling. 

(iii) Motion picture film must be 

safety film meeting the Standard Spec-
ifications for Safety Photographic 
Film PH1.25 (available from the Amer-
ican National Standards Institute, 1430 
Broadway, New York, N.Y. 10018) or an 
FAA approved equivalent. If the film 
travels through ducts, the ducts must 
meet the requirements of paragraph 
(d)(3)(ii) of this section. 

(iv) Acrylic windows and signs, parts 

constructed in whole or in part of elas-
tomeric materials, edge-lighted instru-
ment assemblies consisting of two or 
more instruments in a common hous-
ing, seatbelts, shoulder harnesses, and 
cargo and baggage tiedown equipment, 
including containers, bins, pallets, etc., 
used in passenger or crew compart-
ments, may not have an average burn 
rate greater than 2.5 inches per minute 
when tested horizontally in accordance 
with the applicable portions of appen-
dix F of this part or by other approved 
equivalent methods. 

(v) Except for electrical wire cable 

insulation, and for small parts (such as 
knobs, handles, rollers, fasteners, clips, 
grommets, rub strips, pulleys, and 
small electrical parts) that the Admin-
istrator finds would not contribute sig-
nificantly to the propagation of a fire, 
materials in items not specified in 
paragraphs (d)(3)(i), (ii), (iii), or (iv) of 
this section may not have a burn rate 
greater than 4.0 inches per minute 
when tested horizontally in accordance 
with the applicable portions of appen-
dix F of this part or by other approved 
equivalent methods. 

(e) Lines, tanks, or equipment con-

taining fuel, oil, or other flammable 
fluids may not be installed in such 

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