spaschal on DSK3GDR082PROD with CFR

Pt. 25, SFAR No. 109

14 CFR Ch. I (1-1-19 Edition)

(c) Each door between any passenger seat
and any exit must have dual means to retain
it in the open position, each of which is capable of reacting the inertia loads specified in
Section 25.561.
(d) Doors installed across a longitudinal
aisle must translate laterally to open and
close, e.g., pocket doors.
(e) Each door between any passenger seat
and any exit must be frangible in either direction.
(f) Each door between any passenger seat
and any exit must be operable from either
side, and if a locking mechanism is installed,
it must be capable of being unlocked from either side without the use of special tools.
11. Width of Aisle. Compliance is required
with Section 25.815, except that aisle width may be
reduced to 0 inches between passenger seats
during in-flight operations only, provided
that the applicant demonstrates that all
areas of the cabin are easily accessible by a
crew member in the event of an emergency
(e.g., in-flight fire, decompression). Additionally, instructions must be provided at each
passenger seat for restoring the aisle width
required by Section 25.815. Procedures must be established and documented in the AFM to ensure that the required aisle widths are provided during taxi, takeoff, and landing.
12. Materials for Compartment Interiors.
Compliance is required with the applicable
provisions of Section 25.853, except that compliance
with appendix F, parts IV and V, to part 25,
need not be demonstrated if it can be shown
by test or a combination of test and analysis
that the maximum time for evacuation of all
occupants does not exceed 45 seconds under
the conditions specified in appendix J to part
25.
13. Fire Detection. For airplanes with a type
certificated passenger capacity of 20 or more,
there must be means that meet the requirements of Section 25.858(a) through (d) to signal the
flightcrew in the event of a fire in any isolated room not occupiable for taxi, takeoff
and landing, which can be closed off from the
rest of the cabin by a door. The indication
must identify the compartment where the
fire is located. This does not apply to lavatories, which continue to be governed by
Section 25.854.
14. Cooktops. Each cooktop must be designed and installed to minimize any potential threat to the airplane, passengers, and
crew. Compliance with this requirement
must be found in accordance with the following criteria:
(a) Means, such as conspicuous burner-on
indicators, physical barriers, or handholds,
must be installed to minimize the potential
for inadvertent personnel contact with hot
surfaces of both the cooktop and cookware.
Conditions of turbulence must be considered.
(b) Sufficient design means must be included to restrain cookware while in place
on the cooktop, as well as representative

contents, e.g., soup, sauces, etc., from the effects of flight loads and turbulence. Restraints must be provided to preclude hazardous movement of cookware and contents.
These restraints must accommodate any
cookware that is identified for use with the
cooktop. Restraints must be designed to be
easily utilized and effective in service. The
cookware restraint system should also be designed so that it will not be easily disabled,
thus rendering it unusable. Placarding must
be installed which prohibits the use of
cookware that cannot be accommodated by
the restraint system.
(c) Placarding must be installed which prohibits the use of cooktops (i.e., power on any
burner) during taxi, takeoff, and landing.
(d) Means must be provided to address the
possibility of a fire occurring on or in the
immediate vicinity of the cooktop. Two acceptable means of complying with this requirement are as follows:
(1) Placarding must be installed that prohibits any burner from being powered when
the cooktop is unattended. (NOTE: This
would prohibit a single person from cooking
on the cooktop and intermittently serving
food to passengers while any burner is powered.) A fire detector must be installed in the
vicinity of the cooktop which provides an audible warning in the passenger cabin, and a
fire extinguisher of appropriate size and extinguishing agent must be installed in the
immediate vicinity of the cooktop. Access to
the extinguisher may not be blocked by a
fire on or around the cooktop.
(2) An automatic, thermally activated fire
suppression system must be installed to extinguish a fire at the cooktop and immediately adjacent surfaces. The agent used in
the system must be an approved total flooding agent suitable for use in an occupied
area. The fire suppression system must have
a manual override. The automatic activation
of the fire suppression system must also
automatically shut off power to the cooktop.
(e) The surfaces of the galley surrounding
the cooktop which would be exposed to a fire
on the cooktop surface or in cookware on the
cooktop must be constructed of materials
that comply with the flammability requirements of part III of appendix F to part 25.
This requirement is in addition to the flammability requirements typically required of
the materials in these galley surfaces. During the selection of these materials, consideration must also be given to ensure that the
flammability characteristics of the materials will not be adversely affected by the use
of cleaning agents and utensils used to remove cooking stains.
(f) The cooktop must be ventilated with a
system independent of the airplane cabin and
cargo ventilation system. Procedures and
time intervals must be established to inspect
and clean or replace the ventilation system

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