Section 135.181

14 CFR Ch. I (1-1-19 Edition)

(ii) Proper flightcrew action with respect to the equipment operation.
(2) An outline of all input sources
that must be operating for the TCAS to
function properly.

(2) For single-engine aircraft, descent
under VFR if its engine fails.

[Doc. No. 25355, 54 FR 951, Jan. 10, 1989, as
amended by Amdt. 135-54, 59 FR 67587, Dec.
29, 1994]

Section 135.183 Performance
requirements:
Land aircraft operated over water.

Section 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, multiengine helicopters carrying passengers offshore may conduct such operations in over-the-top or in IFR conditions at a weight that will allow the
helicopter to climb at least 50 feet per
minute with the critical engine inoperative 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 reports 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 ceiling exists) and that the weather is forecast 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 conditions allowing - 
(1) For multiengine aircraft, descent
or continuance of the flight under VFR
if its critical engine fails; or

[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]

No person may operate a land aircraft 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 landing;
(c) It is a multiengine aircraft operated at a weight that will allow it to
climb, with the critical engine inoperative, 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.
Section 135.185 Empty weight and center of
gravity: Currency requirement.
(a) No person may operate a multiengine aircraft unless the current empty
weight and center of gravity are calculated from values established by actual weighing of the aircraft within the
preceding 36 calendar months.
(b) Paragraph (a) of this section does
not apply to - 
(1) Aircraft issued an original airworthiness certificate within the preceding 36 calendar months; and
(2) Aircraft operated under a weight
and balance system approved in the operations specifications of the certificate holder.

Subpart D - VFR/IFR Operating
Limitations and Weather Requirements
Section 135.201 Applicability.
This subpart prescribes the operating
limitations for VFR/IFR flight operations and associated weather requirements for operations under this part.
Section 135.203 VFR: Minimum altitudes.
Except when necessary for takeoff
and landing, no person may operate
under VFR - 
(a) An airplane - 

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