Section 121.155

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

(4) The certificate holder files a copy
of the aircraft lease or charter agreement with the FAA Aircraft Registry,
Department of Transportation, 6400
South MacArthur Boulevard, Oklahoma City, OK (Mailing address: P.O.
Box 25504, Oklahoma City, OK 73125).

4b.484(a)(1) and 4b.487(e)), as in effect
May 16, 1953, must be complied with;
and
(4) The provisions of paragraph
4b.484(a)(1), as in effect July 20, 1950,
must be complied with.
In determining the takeoff path in accordance with section 4b.116 and the
one-engine inoperative climb in accordance with section 4b.120 (a) and (b), the
propeller of the inoperative engine may
be assumed to be feathered if the airplane is equipped with either an approved means for automatically indicating when the particular engine has
failed or an approved means for automatically feathering the propeller of
the inoperative engine. The Administrator may authorize deviations from
compliance with the requirements of
sections 4b.130 through 4b.190 and subparts C, D, E, and F of part 4b (as designated in this paragraph) if he finds
that (considering the effect of design
changes) compliance is extremely difficult to accomplish and that service
experience with the C-46 airplane justifies the deviation.
(d) C-46 type airplanes: cargo operations. No certificate holder may use a
nontransport category C-46 type airplane in cargo operations unless - 
(1) It is certificated at a maximum
gross weight that is not greater than
48,000 pounds;
(2) It meets the requirements of
SectionSection 121.199 through 121.205 using the performance data in appendix C to this
part;
(3) Before each flight, each engine
contains at least 25 gallons of oil; and
(4) After December 31, 1964 - 
(i) It is powered by a type and model
engine as set forth in appendix C of
this part, when certificated at a maximum gross takeoff weight greater
than 45,000 pounds; and
(ii) It complies with the special airworthiness requirement set forth in
SectionSection 121.213 through 121.287 of this part or
in appendix C of this part.
(e) Commuter category airplanes. Except as provided in paragraph (f) of this
section, no certificate holder may operate under this part a nontransport category airplane type certificated after
December 31, 1964, and before March 30,
1995, unless it meets the applicable requirements of Section 121.173 (a), (b), (d), and

[Doc. No. 6258, 29 FR 19197, Dec. 31, 1964, as
amended by Amdt. 121-165, 45 FR 68649, Oct.
16, 1980]

Section 121.155

[Reserved]

Section 121.157 Aircraft
certification
and
equipment requirements.
(a) Airplanes certificated before July 1,
1942. No certificate holder may operate
an airplane that was type certificated
before July 1, 1942, unless - 
(1) That airplane meets the requirements of Section 121.173(c), or
(2) That airplane and all other airplanes of the same or related type operated by that certificate holder meet
the performance requirements of sections 4a.737-T through 4a.750-T of the
Civil Air Regulations as in effect on
January 31, 1965; or SectionSection 25.45 through
25.75 and Section 121.173(a), (b), (d), and (e) of
this title.
(b) Airplanes certificated after June 30,
1942. Except as provided in paragraphs
(c), (d), (e), and (f) of this section, no
certificate holder may operate an airplane that was type certificated after
June 30, 1942, unless it is certificated as
a transport category airplane and
meets the requirements of Section 121.173(a),
(b), (d), and (e).
(c) C-46 type airplanes: passenger-carrying operations. No certificate holder
may operate a C-46 airplane in passenger-carrying operations unless that
airplane is operated in accordance with
the operating limitations for transport
category airplanes and meets the requirements of paragraph (b) of this section or meets the requirements of part
4b, as in effect July 20, 1950, and the requirements of Section 121.173 (a), (b), (d) and
(e), except that - 
(1) The requirements of sections 4b.0
through 4b.19 as in effect May 18, 1954,
must be complied with;
(2) The birdproof windshield requirements of section 4b.352 need not be
complied with;
(3) The provisions of sections 4b.480
through
4b.490
(except
sections

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