Code of Federal Regulations - Title 14

366

14 CFR Ch. I (1–1–14 Edition)

Pt. 25, SFAR No. 109

(c)

Installation of engines of not more than

1,830 cubic inches displacement and not having
a certificated take-off rating of more than 1,350
horsepower. Engines of not more than 1,830
cubic inches displacement and not having a
certificated take-off rating of more than
1,350 horsepower which necessitate a major
modification of redesign of the engine instal-
lation may be installed, if the engine fire
prevention and fire protection are equivalent
to that on the prior engine installation.

(d)

Installation of engines of more than 1,830

cubic inches displacement or having certificated
take-off rating of more than 1,350 horsepower.
Engines of more than 1,830 cubic inches dis-
placement or having certificated take-off
rating of more than 1,350 horsepower may be
installed if compliance is shown with the en-
gine installation requirements of Part 4b:
Provided, That where literal compliance with
the engine installation requirements of Part
4b is extremely difficult to accomplish and
would not contribute materially to the ob-
jective sought, and the Administrator finds
that the experience with the DC–3 or L–18
airplanes justifies it, he is authorized to ac-
cept such measures of compliance as he finds
will effectively accomplish the basic objec-
tive.

Establishment of new maximum certificated

weights. An applicant for approval of new
maximum certificated weights shall apply
for an amendment of the airworthiness cer-
tificate of the airplane and shall show that
the weights sought have been established,
and the appropriate manual material ob-
tained, as provided in this section.

OTE

: Transport category performance re-

quirements result in the establishment of
maximum certificated weights for various
altitudes.

(a)

Weights–25,200 to 26,900 for the DC–3 and

18,500 to 19,500 for the L–18. New maximum
certificated weights of more than 25,200 but
not more than 26,900 pounds for DC–3 and
more than 18,500 but not more than 19,500
pounds for L–18 airplanes may be established
in accordance with the transport category
performance requirements of either Part 4a
or Part 4b, if the airplane at the new max-
imum weights can meet the structural re-
quirements of the elected part.

(b)

Weights of more than 26,900 for the DC–3

and 19,500 for the L–18. New maximum certifi-
cated weights of more than 26,900 pounds for
DC–3 and 19,500 pounds for L–18 airplanes
shall be established in accordance with the
structural performance, flight characteris-
tics, and ground handling requirements of
Part 4b:

Provided, That where literal compli-

ance with the structural requirements of
Part 4b is extremely difficult to accomplish
and would not contribute materially to the
objective sought, and the Administrator
finds that the experience with the DC–3 or L–
18 airplanes justifies it, he is authorized to

accept such measures of compliance as he
finds will effectively accomplish the basic
objective.

(c)

Airplane flight manual-performance oper-

ating information. An approved airplane flight
manual shall be provided for each DC–3 and
L–18 airplane which has had new maximum
certificated weights established under this
section. The airplane flight manual shall
contain the applicable performance informa-
tion prescribed in that part of the regula-
tions under which the new certificated
weights were established and such additional
information as may be necessary to enable
the application of the take-off, en route, and
landing limitations prescribed for transport
category airplanes in the operating parts of
the Civil Air Regulations.

(d)

Performance operating limitations. Each

airplane for which new maximum certifi-
cated weights are established in accordance
with paragraphs (a) or (b) of this section
shall be considered a transport category air-
plane for the purpose of complying with the
performance operating limitations applica-
ble to the operations in which it is utilized.

Reference. Unless otherwise provided, all

references in this regulation to Part 4a and
Part 4b are those parts of the Civil Air Regu-
lations in effect on September 1, 1953.

This regulation supersedes Special Civil

Air Regulation SR–398 and shall remain ef-
fective until superseded or rescinded by the
Board.

[19 FR 5039, Aug. 11, 1954. Redesignated at 29
FR 19099, Dec. 30, 1964]

PECIAL

EDERAL

VIATION

EGULATION

. 109

Applicability. Contrary provisions of 14

CFR parts 21, 25, and 119 of this chapter not-
withstanding, an applicant is entitled to an
amended type certificate or supplemental
type certificate in the transport category, if
the applicant complies with all applicable
provisions of this SFAR.

Operations

General.

(a) The passenger capacity may not exceed

60. If more than 60 passenger seats are in-
stalled, then:

(1) If the extra seats are not suitable for

occupancy during taxi, takeoff and landing,
each extra seat must be clearly marked (e.g.,
a placard on the top of an armrest, or a
placard sewn into the top of the back cush-
ion) that the seat is not to be occupied dur-
ing taxi, takeoff and landing.

(2) If the extra seats are suitable for occu-

pancy during taxi, takeoff and landing (

i.e.,

meet all the strength and passenger injury
criteria in part 25), then a note must be in-
cluded in the Limitations Section of the Air-
plane Flight Manual that there are extra

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