468
14 CFR Ch. I (1–1–24 Edition)
§ 135.180
flight permit under §§ 21.197 and 21.199
of this chapter.
[Doc. No. 25780, 56 FR 12311, Mar. 22, 1991; 56
FR 14920, Apr. 8, 1991, as amended by Amdt.
135–60, 61 FR 2616, Jan. 26, 1996; Amdt. 135–91,
68 FR 54586, Sept. 17, 2003; Docket FAA–2018–
0119, Amdt. 135–139, 83 FR 9175, Mar. 5, 2018]
§ 135.180 Traffic Alert and Collision
Avoidance System.
(a) Unless otherwise authorized by
the Administrator, after December 31,
1995, no person may operate a turbine
powered airplane that has a passenger
seat configuration, excluding any pilot
seat, of 10 to 30 seats unless it is
equipped with an approved traffic alert
and collision avoidance system. If a
TCAS II system is installed, it must be
capable of coordinating with TCAS
units that meet TSO C–119.
(b) The airplane flight manual re-
quired by § 135.21 of this part shall con-
tain the following information on the
TCAS I system required by this sec-
tion:
(1) Appropriate procedures for—
(i) The use of the equipment; and
(ii) Proper flightcrew action with re-
spect to the equipment operation.
(2) An outline of all input sources
that must be operating for the TCAS to
function properly.
[Doc. No. 25355, 54 FR 951, Jan. 10, 1989, as
amended by Amdt. 135–54, 59 FR 67587, Dec.
29, 1994]
§ 135.181 Performance requirements:
Aircraft operated over-the-top or in
IFR conditions.
(a) Except as provided in paragraphs
(b) and (c) of this section, no person
may—
(1) Operate a single-engine aircraft
carrying passengers over-the-top; or
(2) Operate a multiengine aircraft
carrying passengers over-the-top or in
IFR conditions at a weight that will
not allow it to climb, with the critical
engine inoperative, at least 50 feet a
minute when operating at the MEAs of
the route to be flown or 5,000 feet MSL,
whichever is higher.
(b) Notwithstanding the restrictions
in paragraph (a)(2) of this section, mul-
tiengine helicopters carrying pas-
sengers offshore may conduct such op-
erations in over-the-top or in IFR con-
ditions at a weight that will allow the
helicopter to climb at least 50 feet per
minute with the critical engine inoper-
ative when operating at the MEA of
the route to be flown or 1,500 feet MSL,
whichever is higher.
(c) Without regard to paragraph (a) of
this section, if the latest weather re-
ports or forecasts, or any combination
of them, indicate that the weather
along the planned route (including
takeoff and landing) allows flight
under VFR under the ceiling (if a ceil-
ing exists) and that the weather is fore-
cast to remain so until at least 1 hour
after the estimated time of arrival at
the destination, a person may operate
an aircraft over-the-top.
(d) Without regard to paragraph (a)
of this section, a person may operate
an aircraft over-the-top under condi-
tions allowing—
(1) For multiengine aircraft, descent
or continuance of the flight under VFR
if its critical engine fails; or
(2) For single-engine aircraft, descent
under VFR if its engine fails.
[Doc. No. 16097, 43 FR 46783, Oct. 10, 1978, as
amended by Amdt. 135–20, 51 FR 40710, Nov. 7,
1986; Amdt. 135–70, 62 FR 42374, Aug. 6, 1997]
§ 135.183 Performance requirements:
Land aircraft operated over water.
No person may operate a land air-
craft carrying passengers over water
unless—
(a) It is operated at an altitude that
allows it to reach land in the case of
engine failure;
(b) It is necessary for takeoff or land-
ing;
(c) It is a multiengine aircraft oper-
ated at a weight that will allow it to
climb, with the critical engine inoper-
ative, at least 50 feet a minute, at an
altitude of 1,000 feet above the surface;
or
(d) It is a helicopter equipped with
helicopter flotation devices.
§ 135.185 Empty weight and center of
gravity: Currency requirement.
(a) No person may operate a multien-
gine aircraft unless the current empty
weight and center of gravity are cal-
culated from values established by ac-
tual weighing of the aircraft within the
preceding 36 calendar months.
(b) Paragraph (a) of this section does
not apply to—