463 

Federal Aviation Administration, DOT 

§ 135.177 

when current weather reports indicate 
that thunderstorms or other poten-
tially hazardous weather conditions 
that can be detected with airborne 
thunderstorm detection equipment, re-
quired by paragraph (a) or (b) of this 
section, may reasonably be expected 
along the route to be flown, unless the 
airborne thunderstorm detection equip-
ment is in satisfactory operating con-
dition. 

(d) If the airborne thunderstorm de-

tection equipment becomes inoperative 
en route, the aircraft must be operated 
under the instructions and procedures 
specified for that event in the manual 
required by § 135.21. 

(e) This section does not apply to air-

craft used solely within the State of 
Hawaii, within the State of Alaska, 
within that part of Canada west of lon-
gitude 130 degrees W, between latitude 
70 degrees N, and latitude 53 degrees N, 
or during any training, test, or ferry 
flight. 

(f) Without regard to any other provi-

sion of this part, an alternate elec-
trical power supply is not required for 
airborne thunderstorm detection equip-
ment. 

[Doc. No. 16097, 43 FR 46783, Oct. 10, 1978, as 
amended by Amdt. 135–20, 51 FR 40710, Nov. 7, 
1986; Amdt. 135–60, 61 FR 2616, Jan. 26, 1996] 

§ 135.175 Airborne weather radar 

equipment requirements. 

(a) No person may operate a large, 

transport category aircraft in pas-
senger-carrying operations unless ap-
proved airborne weather radar equip-
ment is installed in the aircraft. 

(b) No person may begin a flight 

under IFR or night VFR conditions 
when current weather reports indicate 
that thunderstorms, or other poten-
tially hazardous weather conditions 
that can be detected with airborne 
weather radar equipment, may reason-
ably be expected along the route to be 
flown, unless the airborne weather 
radar equipment required by paragraph 
(a) of this section is in satisfactory op-
erating condition. 

(c) If the airborne weather radar 

equipment becomes inoperative en 
route, the aircraft must be operated 
under the instructions and procedures 
specified for that event in the manual 
required by § 135.21. 

(d) This section does not apply to air-

craft used solely within the State of 
Hawaii, within the State of Alaska, 
within that part of Canada west of lon-
gitude 130 degrees W, between latitude 
70 degrees N, and latitude 53 degrees N, 
or during any training, test, or ferry 
flight. 

(e) Without regard to any other pro-

vision of this part, an alternate elec-
trical power supply is not required for 
airborne weather radar equipment. 

§ 135.177 Emergency equipment re-

quirements for aircraft having a 

passenger seating configuration of 

more than 19 passengers. 

(a) No person may operate an aircraft 

having a passenger seating configura-
tion, excluding any pilot seat, of more 
than 19 seats unless it is equipped with 
the following emergency equipment: 

(1) At least one approved first-aid kit 

for treatment of injuries likely to 
occur in flight or in a minor accident 
that must: 

(i) Be readily accessible to crew-

members. 

(ii) Be stored securely and kept free 

from dust, moisture, and damaging 
temperatures. 

(iii) Contain at least the following 

appropriately maintained contents in 
the specified quantities: 

Contents 

Quantity 

Adhesive bandage compresses, 1-inch .................

16 

Antiseptic swabs .....................................................

20 

Ammonia inhalants .................................................

10 

Bandage compresses, 4-inch .................................

8 

Triangular bandage compresses, 40-inch ..............

5 

Arm splint, noninflatable .........................................

1 

Leg splint, noninflatable ..........................................

1 

Roller bandage, 4-inch ...........................................

4 

Adhesive tape, 1-inch standard roll ........................

2 

Bandage scissors ...................................................

1 

Protective nonpermeable gloves or equivalent ......

1 pair 

(2) A crash axe carried so as to be ac-

cessible to the crew but inaccessible to 
passengers during normal operations. 

(3) Signs that are visible to all occu-

pants to notify them when smoking is 
prohibited and when safety belts must 
be fastened. The signs must be con-
structed so that they can be turned on 
during any movement of the aircraft 
on the surface, for each takeoff or land-
ing, and at other times considered nec-
essary by the pilot in command. ‘‘No 
smoking’’ signs shall be turned on 
when required by § 135.127. 

464 

14 CFR Ch. I (1–1–24 Edition) 

§ 135.178 

(4) [Reserved] 
(b) Each item of equipment must be 

inspected regularly under inspection 
periods established in the operations 
specifications to ensure its condition 
for continued serviceability and imme-
diate readiness to perform its intended 
emergency purposes. 

[Doc. No. 16097, 43 FR 46783, Oct. 10, 1978, as 
amended by Amdt. 135–25, 53 FR 12362, Apr. 
13, 1988; Amdt. 135–43, 57 FR 19245, May 4, 
1992; Amdt. 135–44, 57 FR 42676, Sept. 15, 1992; 
Amdt. 135–47, 59 FR 1781, Jan. 12, 1994; Amdt. 
135–53, 59 FR 52643, Oct. 18, 1994; 59 FR 55208, 
Nov. 4, 1994; Amdt. 121–281, 66 FR 19045, Apr. 
12, 2001] 

§ 135.178 Additional emergency equip-

ment. 

No person may operate an airplane 

having a passenger seating configura-
tion of more than 19 seats, unless it has 
the additional emergency equipment 
specified in paragraphs (a) through (l) 
of this section. 

(a) 

Means for emergency evacuation. 

Each passenger-carrying landplane 
emergency exit (other than over-the- 
wing) that is more than 6 feet from the 
ground, with the airplane on the 
ground and the landing gear extended, 
must have an approved means to assist 
the occupants in descending to the 
ground. The assisting means for a 
floor-level emergency exit must meet 
the requirements of § 25.809(f)(1) of this 
chapter in effect on April 30, 1972, ex-
cept that, for any airplane for which 
the application for the type certificate 
was filed after that date, it must meet 
the requirements under which the air-
plane was type certificated. An assist-
ing means that deploys automatically 
must be armed during taxiing, take-
offs, and landings; however, the Admin-
istrator may grant a deviation from 
the requirement of automatic deploy-
ment if he finds that the design of the 
exit makes compliance impractical, if 
the assisting means automatically 
erects upon deployment and, with re-
spect to required emergency exits, if an 
emergency evacuation demonstration 
is conducted in accordance with 
§ 121.291(a) of this chapter. This para-
graph does not apply to the rear win-
dow emergency exit of Douglas DC–3 
airplanes operated with fewer than 36 
occupants, including crewmembers, 

and fewer than five exits authorized for 
passenger use. 

(b) 

Interior emergency exit marking. 

The following must be complied with 
for each passenger-carrying airplane: 

(1) Each passenger emergency exit, 

its means of access, and its means of 
opening must be conspicuously 
marked. The identity and locating of 
each passenger emergency exit must be 
recognizable from a distance equal to 
the width of the cabin. The location of 
each passenger emergency exit must be 
indicated by a sign visible to occupants 
approaching along the main passenger 
aisle. There must be a locating sign— 

(i) Above the aisle near each over- 

the-wing passenger emergency exit, or 
at another ceiling location if it is more 
practical because of low headroom; 

(ii) Next to each floor level passenger 

emergency exit, except that one sign 
may serve two such exits if they both 
can be seen readily from that sign; and 

(iii) On each bulkhead or divider that 

prevents fore and aft vision along the 
passenger cabin, to indicate emergency 
exits beyond and obscured by it, except 
that if this is not possible, the sign 
may be placed at another appropriate 
location. 

(2) Each passenger emergency exit 

marking and each locating sign must 
meet the following: 

(i) For an airplane for which the ap-

plication for the type certificate was 
filed prior to May 1, 1972, each pas-
senger emergency exit marking and 
each locating sign must be manufac-
tured to meet the requirements of 
§ 25.812(b) of this chapter in effect on 
April 30, 1972. On these airplanes, no 
sign may continue to be used if its lu-
minescence (brightness) decreases to 
below 100 microlamberts. The colors 
may be reversed if it increases the 
emergency illumination of the pas-
senger compartment. However, the Ad-
ministrator may authorize deviation 
from the 2-inch background require-
ments if he finds that special cir-
cumstances exist that make compli-
ance impractical and that the proposed 
deviation provides an equivalent level 
of safety. 

(ii) For an airplane for which the ap-

plication for the type certificate was 
filed on or after May 1, 1972, each pas-
senger emergency exit marking and