288 

14 CFR Ch. I (1–1–19 Edition) 

§ 25.801 

(1) The Director of the Federal Reg-

ister approved the incorporation by ref-
erence of this document under 5 U.S.C. 
552(a) and 1 CFR part 51. 

(2) You may review copies of NIJ 

Standard 0101.04 at the: 

(i) National Institute of Justice 

(NIJ), 

http://www.ojp.usdoj.gov/nij, 

tele-

phone (202) 307–2942; or 

(ii) National Archives and Records 

Administration (NARA). For informa-
tion on the availability of this mate-
rial at NARA, call (202) 741–6030, or go 
to 

http://www.archives.gov/federal-reg-

ister/cfr/ibr-locations.html. 

(3) You may obtain copies of NIJ 

Standard 0101.04 from the National 
Criminal Justice Reference Service, 
P.O. Box 6000, Rockville, MD 20849–6000, 
telephone (800) 851–3420. 

[Amdt. 25–127; 121–341, 73 FR 63879, Oct. 28, 
2008, as amended at 74 FR 22819, May 15, 2009; 
Amdt. 25–138, 79 FR 13519, Mar. 11, 2014; Doc. 
No. FAA–2018–0119, Amdt. 25–145, 83 FR 9169, 
Mar. 5, 2018] 

E

MERGENCY

P

ROVISIONS

 

§ 25.801

Ditching. 

(a) If certification with ditching pro-

visions is requested, the airplane must 
meet the requirements of this section 
and §§ 25.807(e), 25.1411, and 25.1415(a). 

(b) Each practicable design measure, 

compatible with the general character-
istics of the airplane, must be taken to 
minimize the probability that in an 
emergency landing on water, the be-
havior of the airplane would cause im-
mediate injury to the occupants or 
would make it impossible for them to 
escape. 

(c) The probable behavior of the air-

plane in a water landing must be inves-
tigated by model tests or by compari-
son with airplanes of similar configura-
tion for which the ditching characteris-
tics are known. Scoops, flaps, projec-
tions, and any other factor likely to af-
fect the hydrodynamic characteristics 
of the airplane, must be considered. 

(d) It must be shown that, under rea-

sonably probable water conditions, the 
flotation time and trim of the airplane 
will allow the occupants to leave the 
airplane and enter the liferafts re-
quired by § 25.1415. If compliance with 
this provision is shown by buoyancy 
and trim computations, appropriate al-

lowances must be made for probable 
structural damage and leakage. If the 
airplane has fuel tanks (with fuel jetti-
soning provisions) that can reasonably 
be expected to withstand a ditching 
without leakage, the jettisonable vol-
ume of fuel may be considered as buoy-
ancy volume. 

(e) Unless the effects of the collapse 

of external doors and windows are ac-
counted for in the investigation of the 
probable behavior of the airplane in a 
water landing (as prescribed in para-
graphs (c) and (d) of this section), the 
external doors and windows must be 
designed to withstand the probable 
maximum local pressures. 

[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as 
amended by Amdt. 25–72, 55 FR 29781, July 20, 
1990] 

§ 25.803

Emergency evacuation. 

(a) Each crew and passenger area 

must have emergency means to allow 
rapid evacuation in crash landings, 
with the landing gear extended as well 
as with the landing gear retracted, con-
sidering the possibility of the airplane 
being on fire. 

(b) [Reserved] 
(c) For airplanes having a seating ca-

pacity of more than 44 passengers, it 
must be shown that the maximum 
seating capacity, including the number 
of crewmembers required by the oper-
ating rules for which certification is 
requested, can be evacuated from the 
airplane to the ground under simulated 
emergency conditions within 90 sec-
onds. Compliance with this require-
ment must be shown by actual dem-
onstration using the test criteria out-
lined in appendix J of this part unless 
the Administrator finds that a com-
bination of analysis and testing will 
provide data equivalent to that which 
would be obtained by actual dem-
onstration. 

(d)–(e) [Reserved] 

[Doc. No. 24344, 55 FR 29781, July 20, 1990] 

§ 25.807

Emergency exits. 

(a) 

Type. 

For the purpose of this part, 

the types of exits are defined as fol-
lows: 

(1) 

Type I. 

This type is a floor-level 

exit with a rectangular opening of not 
less than 24 inches wide by 48 inches 

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