Section 25.807

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

(g) Type and number required. The
maximum number of passenger seats
permitted depends on the type and
number of exits installed in each side
of the fuselage. Except as further restricted in paragraphs (g)(1) through
(g)(9) of this section, the maximum
number of passenger seats permitted
for each exit of a specific type installed
in each side of the fuselage is as follows:

spaschal on DSK3GDR082PROD with CFR

Type
Type
Type
Type
Type
Type
Type

A
B
C
I
II
III
IV

110
75
55
45
40
35
9

(1) For a passenger seating configuration of 1 to 9 seats, there must be at
least one Type IV or larger overwing
exit in each side of the fuselage or, if
overwing exits are not provided, at
least one exit in each side that meets
the minimum dimensions of a Type III
exit.
(2) For a passenger seating configuration of more than 9 seats, each exit
must be a Type III or larger exit.
(3) For a passenger seating configuration of 10 to 19 seats, there must be at
least one Type III or larger exit in each
side of the fuselage.
(4) For a passenger seating configuration of 20 to 40 seats, there must be at
least two exits, one of which must be a
Type II or larger exit, in each side of
the fuselage.
(5) For a passenger seating configuration of 41 to 110 seats, there must be at
least two exits, one of which must be a
Type I or larger exit, in each side of
the fuselage.
(6) For a passenger seating configuration of more than 110 seats, the emergency exits in each side of the fuselage
must include at least two Type I or
larger exits.
(7) The combined maximum number
of passenger seats permitted for all
Type III exits is 70, and the combined
maximum number of passenger seats
permitted for two Type III exits in
each side of the fuselage that are separated by fewer than three passenger
seat rows is 65.
(8) If a Type A, Type B, or Type C
exit is installed, there must be at least

two Type C or larger exits in each side
of the fuselage.
(9) If a passenger ventral or tailcone
exit is installed and that exit provides
at least the same rate of egress as a
Type III exit with the airplane in the
most adverse exit opening condition
that would result from the collapse of
one or more legs of the landing gear, an
increase in the passenger seating configuration is permitted as follows:
(i) For a ventral exit, 12 additional
passenger seats.
(ii) For a tailcone exit incorporating
a floor level opening of not less than 20
inches wide by 60 inches high, with corner radii not greater than seven inches,
in the pressure shell and incorporating
an approved assist means in accordance
with Section 25.810(a), 25 additional passenger
seats.
(iii) For a tailcone exit incorporating
an opening in the pressure shell which
is at least equivalent to a Type III
emergency exit with respect to dimensions, step-up and step-down distance,
and with the top of the opening not
less than 56 inches from the passenger
compartment floor, 15 additional passenger seats.
(h) Other exits. The following exits
also must meet the applicable emergency exit requirements of SectionSection 25.809
through 25.812, and must be readily accessible:
(1) Each emergency exit in the passenger compartment in excess of the
minimum number of required emergency exits.
(2) Any other floor-level door or exit
that is accessible from the passenger
compartment and is as large or larger
than a Type II exit, but less than 46
inches wide.
(3) Any other ventral or tail cone
passenger exit.
(i) Ditching emergency exits for passengers. Whether or not ditching certification is requested, ditching emergency exits must be provided in accordance with the following requirements,
unless the emergency exits required by
paragraph (g) of this section already
meet them:
(1) For airplanes that have a passenger seating configuration of nine or
fewer seats, excluding pilot seats, one
exit above the waterline in each side of

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