369 

Federal Aviation Administration, DOT 

Pt. 125, App. D 

airplane that meet all of the requirements 
applicable to the required emergency exits 
for that airplane may be used for the dem-
onstration. Exits that are not to be used in 
the demonstration must have the exit handle 
deactivated or must be indicated by red 
lights, red tape or other acceptable means, 
placed outside the exits to indicate fire or 
other reason that they are unusable. The 
exits to be used must be representative of all 
of the emergency exits on the airplane and 
must be designated by the certificate holder, 
subject to approval by the Administrator. At 
least one floor level exit must be used. 

(18) All evacuees, except those using an 

over-the-wing exit, must leave the airplane 
by a means provided as part of the airplane’s 
equipment. 

(19) The certificate holder’s approved pro-

cedures and all of the emergency equipment 
that is normally available, including slides, 
ropes, lights, and megaphones, must be fully 
utilized during the demonstration. 

(20) The evacuation time period is com-

pleted when the last occupant has evacuated 
the airplane and is on the ground. Evacuees 
using stands or ramps allowed by item (3) 
above are considered to be on the ground 
when they are on the stand or ramp: 

Pro-

vided, 

That the acceptance rate of the stand 

or ramp is no greater than the acceptance 
rate of the means available on the airplane 
for descent from the wing during an actual 
crash situation. 

(b) 

Ditching demonstration. 

The demonstra-

tion must assume that daylight hours exist 
outside the airplane and that all required 
crewmembers are available for the dem-
onstration. 

(1) If the certificate holder’s manual re-

quires the use of passengers to assist in the 
launching of liferafts, the needed passengers 
must be aboard the airplane and participate 
in the demonstration according to the man-
ual. 

(2) A stand must be placed at each emer-

gency exit and wing with the top of the plat-
form at a height simulating the water level 
of the airplane following a ditching. 

(3) After the ditching signal has been re-

ceived, each evacuee must don a life vest ac-
cording to the certificate holder’s manual. 

(4) Each liferaft must be launched and in-

flated according to the certificate holder’s 
manual and all other required emergency 
equipment must be placed in rafts. 

(5) Each evacuee must enter a liferaft and 

the crewmembers assigned to each liferaft 

must indicate the location of emergency 
equipment aboard the raft and describe its 
use. 

(6) Either the airplane, a mockup of the 

airplane, or a floating device simulating a 
passenger compartment must be used. 

(i) If a mockup of the airplane is used, it 

must be a life-size mockup of the interior 
and representative of the airplane currently 
used by or proposed to be used by the certifi-
cate holder and must contain adequate seats 
for use of the evacuees. Operation of the 
emergency exits and the doors must closely 
simulate that on the airplane. Sufficient 
wing area must be installed outside the over- 
the-wing exits to demonstrate the evacu-
ation. 

(ii) If a floating device simulating a pas-

senger compartment is used, it must be rep-
resentative, to the extent possible, of the 
passenger compartment of the airplane used 
in operations. Operation of the emergency 
exits and the doors must closely simulate op-
eration on that airplane. Sufficient wing 
area must be installed outside the over-the- 
wing exits to demonstrate the evacuation. 
The device must be equipped with the same 
survival equipment as is installed on the air-
plane, to accommodate all persons partici-
pating in the demonstration. 

A

PPENDIX

C 

TO

P

ART

125—I

CE

 

P

ROTECTION

 

If certification with ice protection provi-

sions is desired, compliance with the fol-
lowing must be shown: 

(a) The recommended procedures for the 

use of the ice protection equipment must be 
set forth in the Airplane Flight Manual. 

(b) An analysis must be performed to es-

tablish, on the basis of the airplane’s oper-
ational needs, the adequacy of the ice protec-
tion system for the various components of 
the airplane. In addition, tests of the ice pro-
tection system must be conducted to dem-
onstrate that the airplane is capable of oper-
ating safely in continuous maximum and 
intermittent maximum icing conditions as 
described in appendix C of part 25 of this 
chapter. 

(c) Compliance with all or portions of this 

section may be accomplished by reference, 
where applicable because of similarity of the 
designs, to analyses and tests performed by 
the applicant for a type certificated model. 

A

PPENDIX

D 

TO

P

ART

125—A

IRPLANE

F

LIGHT

R

ECORDER

S

PECIFICATION

 

Parameters Range 

Accuracy sensor input to 

DFDR readout 

Sampling inter-

val (per second) 

Resolution

4

 

read out 

Time (GMT or Frame Counter) 

(range 0 to 4095, sampled 1 
per frame).

24 Hrs ..........................

±

0.125% Per Hour .................

0.25 (1 per 4 

seconds).

1 sec. 

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