Federal Aviation Administration, DOT

Section 29.812

readable from a distance of 30 inches;
and
(2) For each Type I or Type II emergency exit with a locking mechanism
released by rotary motion of the handle, by - 
(i) A red arrow, with a shaft at least
three-fourths inch wide and a head
twice the width of the shaft, extending
along at least 70 degrees of arc at a radius approximately equal to threefourths of the handle length; and
(ii) The word  - open -  in red letters 1
inch high, placed horizontally near the
head of the arrow.
(f) Each emergency exit, and its
means of opening, must be marked on
the outside of the rotorcraft. In addition, the following apply:
(1) There must be a 2-inch colored
band outlining each passenger emergency exit, except small rotorcraft
with a maximum weight of 12,500
pounds or less may have a 2-inch colored band outlining each exit release
lever or device of passenger emergency
exits which are normally used doors.
(2) Each outside marking, including
the band, must have color contrast to
be readily distinguishable from the surrounding fuselage surface. The contrast
must be such that, if the reflectance of
the darker color is 15 percent or less,
the reflectance of the lighter color
must be at least 45 percent.  - Reflectance -  is the ratio of the luminous flux
reflected by a body to the luminous
flux it receives. When the reflectance
of the darker color is greater than 15
percent, at least a 30 percent difference
between its reflectance and the reflectance of the lighter color must be provided.
(g) Exits marked as such, though in
excess of the required number of exits,
must meet the requirements for emergency exits of the particular type.
Emergency exits need only be marked
with the word  - Exit. - 

spaschal on DSK3GDR082PROD with CFR

[Amdt. 29-3, 33 FR 968, Jan. 26, 1968, as
amended by Amdt. 29-24, 49 FR 44438, Nov. 6,
1984; Amdt. 27-26, 55 FR 8004, Mar. 6, 1990;
Amdt. 29-31, 55 FR 38967, Sept. 21, 1990]

Section 29.812

Emergency lighting.

For transport Category A rotorcraft,
the following apply:

(a) A source of light with its power
supply independent of the main lighting system must be installed to - 
(1) Illuminate each passenger emergency exit marking and locating sign;
and
(2) Provide enough general lighting
in the passenger cabin so that the average illumination, when measured at 40inch intervals at seat armrest height
on the center line of the main passenger aisle, is at least 0.05 foot-candle.
(b) Exterior emergency lighting must
be provided at each emergency exit.
The illumination may not be less than
0.05 foot-candle (measured normal to
the direction of incident light) for minimum width on the ground surface,
with landing gear extended, equal to
the width of the emergency exit where
an evacuee is likely to make first contact with the ground outside the cabin.
The exterior emergency lighting may
be provided by either interior or exterior sources with light intensity measurements made with the emergency
exits open.
(c) Each light required by paragraph
(a) or (b) of this section must be operable manually from the cockpit station
and from a point in the passenger compartment that is readily accessible.
The cockpit control device must have
an  - on, -   - off, -  and  - armed -  position
so that when turned on at the cockpit
or passenger compartment station or
when armed at the cockpit station, the
emergency lights will either illuminate
or remain illuminated upon interruption of the rotorcraft-s normal electric
power.
(d) Any means required to assist the
occupants in descending to the ground
must be illuminated so that the erected assist means is visible from the
rotorcraft.
(1) The assist means must be provided with an illumination of not less
than 0.03 foot-candle (measured normal
to the direction of the incident light)
at the ground end of the erected assist
means where an evacuee using the established escape route would normally
make first contact with the ground,
with the rotorcraft in each of the attitudes corresponding to the collapse of
one or more legs of the landing gear.
(2) If the emergency lighting subsystem illuminating the assist means

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