Code of Federal Regulations - Title 14

459

Federal Aviation Administration, DOT

§ 25.820

Passenger seating capacity

Minimum passenger

aisle width (inches)

Less than

25 in. from

floor

25 in. and

more from

floor

11 through 19 ................................

20 or more .....................................

A narrower width not less than 9 inches may be approved

when substantiated by tests found necessary by the
Administrator.

[Amdt. 25–15, 32 FR 13265, Sept. 20, 1967, as
amended by Amdt. 25–38, 41 FR 55466, Dec. 20,
1976]

§ 25.817

Maximum number of seats

abreast.

On airplanes having only one pas-

senger aisle, no more than three seats
abreast may be placed on each side of
the aisle in any one row.

[Amdt. 25–15, 32 FR 13265, Sept. 20, 1967]

§ 25.819

Lower deck service compart-

ments (including galleys).

For airplanes with a service compart-

ment located below the main deck,
which may be occupied during taxi or
flight but not during takeoff or land-
ing, the following apply:

(a) There must be at least two emer-

gency evacuation routes, one at each
end of each lower deck service com-
partment or two having sufficient sepa-
ration within each compartment,
which could be used by each occupant
of the lower deck service compartment
to rapidly evacuate to the main deck
under normal and emergency lighting
conditions. The routes must provide for
the evacuation of incapacitated per-
sons, with assistance. The use of the
evacuation routes may not be depend-
ent on any powered device. The routes
must be designed to minimize the pos-
sibility of blockage which might result
from fire, mechanical or structural
failure, or persons standing on top of or
against the escape routes. In the event
the airplane’s main power system or
compartment main lighting system
should fail, emergency illumination for
each lower deck service compartment
must be automatically provided.

(b) There must be a means for two-

way voice communication between the
flight deck and each lower deck service
compartment, which remains available
following loss of normal electrical
power generating system.

gency alarm system, audible during
normal and emergency conditions, to
enable crewmembers on the flight deck
and at each required floor level emer-
gency exit to alert occupants of each
lower deck service compartment of an
emergency situation.

(d) There must be a means, readily

detectable by occupants of each lower
deck service compartment, that indi-
cates when seat belts should be fas-
tened.

(e) If a public address system is in-

stalled in the airplane, speakers must
be provided in each lower deck service
compartment.

(f) For each occupant permitted in a

lower deck service compartment, there
must be a forward or aft facing seat
which meets the requirements of
§ 25.785(d), and must be able to with-
stand maximum flight loads when oc-
cupied.

(g) For each powered lift system in-

stalled between a lower deck service
compartment and the main deck for
the carriage of persons or equipment,
or both, the system must meet the fol-
lowing requirements:

(1) Each lift control switch outside

the lift, except emergency stop but-
tons, must be designed to prevent the
activation of the life if the lift door, or
the hatch required by paragraph (g)(3)
of this section, or both are open.

(2) An emergency stop button, that

when activated will immediately stop
the lift, must be installed within the
lift and at each entrance to the lift.

(3) There must be a hatch capable of

being used for evacuating persons from
the lift that is openable from inside
and outside the lift without tools, with
the lift in any position.

[Amdt. 25–53, 45 FR 41593, June 19, 1980; 45 FR
43154, June 26, 1980; Amdt. 25–110; 68 FR 36883,
June 19, 2003]

§ 25.820

Lavatory doors.

All lavatory doors must be designed

to preclude anyone from becoming
trapped inside the lavatory. If a lock-
ing mechanism is installed, it must be
capable of being unlocked from the
outside without the aid of special tools.

[Doc. No. 2003–14193, 69 FR 24502, May 3, 2004]

VerDate Mar<15>2010

10:12 Mar 18, 2014

Jkt 232046

PO 00000

Frm 00469

Fmt 8010

Sfmt 8010

Y:\SGML\232046.XXX

232046

pmangrum on DSK3VPTVN1PROD with CFR