CS 29.807 Passenger emergency exits

ED Decision 2018/007/R

(a) Type. For the purpose of this CS-29, the types of passenger emergency exit are as follows:

(1) Type I. This type must have a rectangular opening of not less than 0.61 m wide by 1.22 m (24 inches wide by 48 inches) high, with corner radii not greater than one-third the width of the exit, in the passenger area in the side of the fuselage at floor level and as far away as practicable from areas that might become potential fire hazards in a crash.

(2) Type II. This type is the same as Type I, except that the opening must be at least 0.51 m wide by 1.12 m (20 inches wide by 44 inches) high.

(3) Type III. This type is the same as Type I, except that:

(i) The opening must be at least 0.51 m wide by 0.91 m (20 inches wide by 36 inches) high; and

(ii) The exits need not be at floor level.

(4) Type IV. This type must have a rectangular opening of not less than 0.48 m wide by 0.66 m (19 inches wide by 26 inches) high, with corner radii not greater than one-third the width of the exit, in the side of the fuselage with a step-up inside the rotorcraft of not more than 0.74 m (29 inches).

Openings with dimensions larger than those specified in this paragraph may be used, regardless of shape, if the base of the opening has a flat surface of not less than the specified width.

(b) Passenger emergency exits: side-of fuselage. Emergency exits must be accessible to the passengers and, except as provided in sub-paragraph (d), must be provided in accordance with the following table:

Passenger seating capacity	Emergency exits for each side of the fuselage
	(Type I)	(Type II)	(Type III)	(Type IV)
1 to 10				1
11 to 19			1 or	2
20 to 39		1		1
40 to 59	1			1
60 to 79	1		1 or	2

(c) Passenger emergency exits; other than side of-fuselage. In addition to the requirements of subparagraph (b):

(1) There must be enough openings in the top, bottom, or ends of the fuselage to allow evacuation with the rotorcraft on its side; or

(2) The probability of the rotorcraft coming to rest on its side in a crash landing must be extremely remote.

(d) Underwater emergency exits for passengers. If certification with ditching provisions is requested by the applicant, underwater emergency exits must be provided in accordance with the following requirements and must be proven by test, demonstration, or analysis to provide for rapid escape with the rotorcraft in the upright floating position or capsized.

(1) One underwater emergency exit in each side of the rotorcraft, meeting at least the dimensions of a Type IV exit for each unit (or part of a unit) of four passenger seats. However, the passenger seat-to-exit ratio may be increased for exits large enough to permit the simultaneous egress of two passengers side by side.

(2) Flotation devices, whether stowed or deployed, may not interfere with or obstruct the underwater emergency exits.

(e) Ramp exits. One Type I exit only, or one Type II exit only, that is required in the side of the fuselage under sub-paragraph (b), may be installed instead in the ramp of floor ramp rotorcraft if:

(1) Its installation in the side of the fuselage is impractical; and

(2) Its installation in the ramp meets CS 29.813.

(f) Tests. The proper functioning of each emergency exit must be shown by test.

[Amdt No: 29/5]