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451
Federal Aviation Administration, DOT
§ 25.809
(j)
Flightcrew emergency exits. For air-
planes in which the proximity of pas-
senger emergency exits to the
flightcrew area does not offer a conven-
ient and readily accessible means of
evacuation of the flightcrew, and for
all airplanes having a passenger seat-
ing capacity greater than 20, flightcrew
exits shall be located in the flightcrew
area. Such exits shall be of sufficient
size and so located as to permit rapid
evacuation by the crew. One exit shall
be provided on each side of the air-
plane; or, alternatively, a top hatch
shall be provided. Each exit must en-
compass an unobstructed rectangular
opening of at least 19 by 20 inches un-
less satisfactory exit utility can be
demonstrated by a typical crew-
member.
[Amdt. 25–72, 55 FR 29781, July 20, 1990, as
amended by Amdt. 25–88, 61 FR 57956, Nov. 8,
1996; 62 FR 1817, Jan. 13, 1997; Amdt. 25–94, 63
FR 8848, Feb. 23, 1998; 63 FR 12862, Mar. 16,
1998; Amdt. 25–114, 69 FR 24502, May 3, 2004]
§ 25.809
Emergency exit arrangement.
(a) Each emergency exit, including
each flightcrew emergency exit, must
be a moveable door or hatch in the ex-
ternal walls of the fuselage, allowing
an unobstructed opening to the out-
side. In addition, each emergency exit
must have means to permit viewing of
the conditions outside the exit when
the exit is closed. The viewing means
may be on or adjacent to the exit pro-
vided no obstructions exist between the
exit and the viewing means. Means
must also be provided to permit view-
ing of the likely areas of evacuee
ground contact. The likely areas of
evacuee ground contact must be
viewable during all lighting conditions
with the landing gear extended as well
as in all conditions of landing gear col-
lapse.
(b) Each emergency exit must be
openable from the inside and the out-
side except that sliding window emer-
gency exits in the flight crew area need
not be openable from the outside if
other approved exits are convenient
and readily accessible to the flight
crew area. Each emergency exit must
be capable of being opened, when there
is no fuselage deformation—
(1) With the airplane in the normal
ground attitude and in each of the atti-
tudes corresponding to collapse of one
or more legs of the landing gear; and
(2) Within 10 seconds measured from
the time when the opening means is ac-
tuated to the time when the exit is
fully opened.
(3) Even though persons may be
crowded against the door on the inside
of the airplane.
(c) The means of opening emergency
exits must be simple and obvious; may
not require exceptional effort; and
must be arranged and marked so that
it can be readily located and operated,
even in darkness. Internal exit-opening
means involving sequence operations
(such as operation of two handles or
latches, or the release of safety
catches) may be used for flightcrew
emergency exits if it can be reasonably
established that these means are sim-
ple and obvious to crewmembers
trained in their use.
(d) If a single power-boost or single
power-operated system is the primary
system for operating more than one
exit in an emergency, each exit must
be capable of meeting the requirements
of paragraph (b) of this section in the
event of failure of the primary system.
Manual operation of the exit (after
failure of the primary system) is ac-
ceptable.
(e) Each emergency exit must be
shown by tests, or by a combination of
analysis and tests, to meet the require-
ments of paragraphs (b) and (c) of this
section.
(f) Each door must be located where
persons using them will not be endan-
gered by the propellers when appro-
priate operating procedures are used.
(g) There must be provisions to mini-
mize the probability of jamming of the
emergency exits resulting from fuse-
lage deformation in a minor crash
landing.
(h) When required by the operating
rules for any large passenger-carrying
turbojet-powered airplane, each ven-
tral exit and tailcone exit must be—
(1) Designed and constructed so that
it cannot be opened during flight; and
(2) Marked with a placard readable
from a distance of 30 inches and in-
stalled at a conspicuous location near
the means of opening the exit, stating
that the exit has been designed and
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