Federal Aviation Administration, DOT

Section 125.9

support the continued airworthiness of
each airplane.
[Doc. No. 19779, 45 FR 67235, Oct. 9, 1980, as
amended by Amdt. 125-4, 47 FR 44719, Oct. 12,
1982; Amdt. 125-5, 49 FR 34816, Sept. 4, 1984;
Amdt. 125-6, 51 FR 873, Jan. 8, 1986; Amdt.
125-9, 52 FR 20028, May 28, 1987; Amdt. 121-251,
60 FR 65937, Dec. 20, 1995; Amdt. 125-31, 64 FR
1080, Jan. 7, 1999; Amdt. 125-44, 68 FR 54585,
Sept. 17, 2003; Amdt. 125-53, 72 FR 63412, Nov.
8, 2007]

Section 125.3 Deviation authority.
(a) The Administrator may, upon
consideration of the circumstances of a
particular operation, issue deviation
authority providing relief from specified sections of part 125. This deviation
authority will be issued as a Letter of
Deviation Authority.
(b) A Letter of Deviation Authority
may be terminated or amended at any
time by the Administrator.
(c) A request for deviation authority
must be submitted to the responsible
Flight Standards office, not less than
60 days prior to the date of intended
operations. A request for deviation authority must contain a complete statement of the circumstances and justification for the deviation requested.
(d) After February 2, 2012, no deviation authority from the flight data recorder requirements of this part will be
granted. Any previously issued deviation from the flight data recorder requirements of this part is no longer
valid.
[Doc. No. 19779, 45 FR 67235, Oct. 9, 1980, as
amended by Amdt. 125-13, 54 FR 39294, Sept.
25, 1989; Amdt. 125-56, 73 FR 73179, Dec. 2,
2008; Docket FAA-2018-0119, Amdt. 125-68, 83
FR 9173, Mar. 5, 2018]

Section 125.5 Operating certificate and operations specifications required.
(a) After February 3, 1981, no person
may engage in operations governed by
this part unless that person holds a
certificate and operations specification
or appropriate deviation authority.
(b) Applicants who file an application
before June 1, 1981 shall continue to operate under the rules applicable to
their operations on February 2, 1981
until the application for an operating
certificate required by this part has
been denied or the operating certificate
and operations specifications required
by this part have been issued.

(c) The rules of this part which apply
to a certificate holder also apply to
any person who engages in any operation governed by this part without an
appropriate certificate and operations
specifications required by this part or a
Letter of Deviation Authority issued
under Section 125.3.
[Doc. No. 19779, 45 FR 67235, Oct. 9, 1980, as
amended by Amdt. 125-1A, 46 FR 10903, Feb.
5, 1981]

Section 125.7 Display of certificate.
(a) The certificate holder must display a true copy of the certificate in
each of its aircraft.
(b) Each operator holding a Letter of
Deviation Authority issued under this
part must carry a true copy in each of
its airplanes.
Section 125.9 Definitions.
(a) For the purposes of this part, maximum payload capacity means:
(1) For an airplane for which a maximum zero fuel weight is prescribed in
FAA technical specifications, the maximum zero fuel weight, less empty
weight, less all justifiable airplane
equipment, and less the operating load
(consisting of minimum flightcrew,
foods and beverages and supplies and
equipment related to foods and beverages, but not including disposable
fuel or oil):
(2) For all other airplanes, the maximum certificated takeoff weight of an
airplane, less the empty weight, less all
justifiable airplane equipment, and less
the operating load (consisting of minimum fuel load, oil, and flightcrew).
The allowance for the weight of the
crew, oil, and fuel is as follows:
(i) Crew - 200 pounds for each crewmember required under this chapter
(ii) Oil - 350 pounds.
(iii) Fuel - the minimum weight of
fuel required under this chapter for a
flight between domestic points 174 nautical miles apart under VFR weather
conditions that does not involve extended overwater operations.
(b) For the purposes of this part,
empty weight means the weight of the
airframe, engines, propellers, and fixed
equipment. Empty weight excludes the
weight of the crew and payload, but includes the weight of all fixed ballast,
unusable fuel supply, undrainable oil,

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