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443 

Federal Aviation Administration, DOT 

§ 135.161 

§ 135.159

Equipment requirements: 

Carrying passengers under VFR at 
night or under VFR over-the-top 
conditions. 

No person may operate an aircraft 

carrying passengers under VFR at 
night or under VFR over-the-top, un-
less it is equipped with— 

(a) A gyroscopic rate-of-turn indi-

cator except on the following aircraft: 

(1) Airplanes with a third attitude in-

strument system usable through flight 
attitudes of 360 degrees of pitch-and- 
roll and installed in accordance with 
the instrument requirements pre-
scribed in § 121.305(j) of this chapter. 

(2) Helicopters with a third attitude 

instrument system usable through 
flight attitudes of 

±

80 degrees of pitch 

and 

±

120 degrees of roll and installed in 

accordance with § 29.1303(g) of this 
chapter. 

(3) Helicopters with a maximum cer-

tificated takeoff weight of 6,000 pounds 
or less. 

(b) A slip skid indicator. 
(c) A gyroscopic bank-and-pitch indi-

cator. 

(d) A gyroscopic direction indicator. 
(e) A generator or generators able to 

supply all probable combinations of 
continuous in-flight electrical loads for 
required equipment and for recharging 
the battery. 

(f) For night flights— 
(1) An anticollision light system; 
(2) Instrument lights to make all in-

struments, switches, and gauges easily 
readable, the direct rays of which are 
shielded from the pilots’ eyes; and 

(3) A flashlight having at least two 

size ‘‘D’’ cells or equivalent. 

(g) For the purpose of paragraph (e) 

of this section, a continuous in-flight 
electrical load includes one that draws 
current continuously during flight, 
such as radio equipment and elec-
trically driven instruments and lights, 
but does not include occasional inter-
mittent loads. 

(h) Notwithstanding provisions of 

paragraphs (b), (c), and (d), helicopters 
having a maximum certificated takeoff 
weight of 6,000 pounds or less may be 
operated until January 6, 1988, under 
visual flight rules at night without a 
slip skid indicator, a gyroscopic bank- 

and-pitch indicator, or a gyroscopic di-
rection indicator. 

[Doc. No. 24550, 51 FR 40709, Nov. 7, 1986, as 
amended by Amdt. 135–38, 55 FR 43310, Oct. 
26, 1990] 

§ 135.160

Radio altimeters for rotor-

craft operations. 

(a) After April 24, 2017, no person may 

operate a rotorcraft unless that rotor-
craft is equipped with an operable 
FAA-approved radio altimeter, or an 
FAA-approved device that incorporates 
a radio altimeter, unless otherwise au-
thorized in the certificate holder’s ap-
proved minimum equipment list. 

(b) 

Deviation authority. 

The Adminis-

trator may authorize deviations from 
paragraph (a) of this section for rotor-
craft that are unable to incorporate a 
radio altimeter. This deviation will be 
issued as a Letter of Deviation Author-
ity. The deviation may be terminated 
or amended at any time by the Admin-
istrator. The request for deviation au-
thority is applicable to rotorcraft with 
a maximum gross takeoff weight no 
greater than 2,950 pounds. The request 
for deviation authority must contain a 
complete statement of the cir-
cumstances and justification, and must 
be submitted to the responsible Flight 
Standards office, not less than 60 days 
prior to the date of intended oper-
ations. 

[Doc. No. FAA–2010–0982, 79 FR 9973, Feb. 21, 
2014, as amended by Docket FAA–2018–0119, 
Amdt. 135–139, 83 FR 9175, Mar. 5, 2018] 

§ 135.161

Communication and naviga-

tion equipment for aircraft oper-
ations under VFR over routes navi-
gated by pilotage. 

(a) No person may operate an aircraft 

under VFR over routes that can be 
navigated by pilotage unless the air-
craft is equipped with the two-way 
radio communication equipment nec-
essary under normal operating condi-
tions to fulfill the following: 

(1) Communicate with at least one 

appropriate station from any point on 
the route, except in remote locations 
and areas of mountainous terrain 
where geographical constraints make 
such communication impossible. 

(2) Communicate with appropriate air 

traffic control facilities from any point 

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