Section 25.789

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

Section 25.789 Retention of items of mass in
passenger and crew compartments
and galleys.

(e) Symbols that clearly express the
intent of the sign or placard may be
used in lieu of letters.

(a) Means must be provided to prevent each item of mass (that is part of
the airplane type design) in a passenger
or crew compartment or galley from
becoming a hazard by shifting under
the appropriate maximum load factors
corresponding to the specified flight
and ground load conditions, and to the
emergency
landing
conditions
of
Section 25.561(b).
(b) Each interphone restraint system
must be designed so that when subjected to the load factors specified in
Section 25.561(b)(3), the interphone will remain in its stowed position.

[Amdt. 25-72, 55 FR 29780, July 20, 1990]

[Amdt. 25-32, 37 FR 3969, Feb. 24, 1972, as
amended by Amdt. 25-46, 43 FR 50596, Oct. 30,
1978]

spaschal on DSK3GDR082PROD with CFR

Section 25.791 Passenger information signs
and placards.
(a) If smoking is to be prohibited,
there must be at least one placard so
stating that is legible to each person
seated in the cabin. If smoking is to be
allowed, and if the crew compartment
is separated from the passenger compartment, there must be at least one
sign notifying when smoking is prohibited. Signs which notify when smoking
is prohibited must be operable by a
member of the flightcrew and, when illuminated, must be legible under all
probable conditions of cabin illumination to each person seated in the cabin.
(b) Signs that notify when seat belts
should be fastened and that are installed to comply with the operating
rules of this chapter must be operable
by a member of the flightcrew and,
when illuminated, must be legible
under all probable conditions of cabin
illumination to each person seated in
the cabin.
(c) A placard must be located on or
adjacent to the door of each receptacle
used for the disposal of flammable
waste materials to indicate that use of
the receptacle for disposal of cigarettes, etc., is prohibited.
(d) Lavatories must have  - No Smoking -  or  - No Smoking in Lavatory - 
placards conspicuously located on or
adjacent to each side of the entry door.

Section 25.793

Floor surfaces.

The floor surface of all areas which
are likely to become wet in service
must have slip resistant properties.
[Amdt. 25-51, 45 FR 7755, Feb. 4, 1980]

Section 25.795

Security considerations.

(a) Protection of flightcrew compartment. If a flightdeck door is required by
operating rules:
(1) The bulkhead, door, and any other
accessible boundary separating the
flightcrew compartment from occupied
areas must be designed to resist forcible intrusion by unauthorized persons
and be capable of withstanding impacts
of 300 joules (221.3 foot pounds).
(2) The bulkhead, door, and any other
accessible boundary separating the
flightcrew compartment from occupied
areas must be designed to resist a constant 250 pound (1,113 Newtons) tensile
load on accessible handholds, including
the doorknob or handle.
(3) The bulkhead, door, and any other
boundary separating the flightcrew
compartment from any occupied areas
must be designed to resist penetration
by small arms fire and fragmentation
devices to a level equivalent to level
IIIa of the National Institute of Justice
(NIJ) Standard 0101.04.
(b) Airplanes with a maximum certificated passenger seating capacity of
more than 60 persons or a maximum
certificated takeoff gross weight of
over 100,000 pounds (45,359 Kilograms)
must be designed to limit the effects of
an explosive or incendiary device as
follows:
(1) Flightdeck smoke protection. Means
must be provided to limit entry of
smoke, fumes, and noxious gases into
the flightdeck.
(2) Passenger cabin smoke protection.
Means must be provided to prevent passenger incapacitation in the cabin resulting from smoke, fumes, and noxious gases as represented by the initial
combined volumetric concentrations of
0.59% carbon monoxide and 1.23% carbon dioxide.

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