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Federal Aviation Administration, DOT
§ 121.195
cruising power) from an airport that
meets the requirements of § 121.197.
(2) Its weight, according to the two-
engine-inoperative, en route, net flight
path data in the Airplane Flight Man-
ual, allows the airplane to fly from the
point where the two engines are as-
sumed to fail simultaneously to an air-
port that meets the requirements of
§ 121.197, with a net flight path (consid-
ering the ambient temperatures antici-
pated along the track) having a posi-
tive slope at an altitude of at least
1,000 feet above all terrain and obstruc-
tions within 5 miles on each side of the
intended track, or at an altitude of
2,000 feet, whichever is higher.
For the purposes of paragraph (b)(2) of
this section, it is assumed that the two
engines fail at the most critical point
en route, that the airplane’s weight at
the point where the engines fail in-
cludes enough fuel to continue to the
airport, to arrive at an altitude of at
least 1,500 feet directly over the air-
port, and thereafter to fly for 15 min-
utes at cruise power or thrust, or both,
and that the consumption of fuel and
oil after engine failure is the same as
the consumption allowed for in the net
flight path data in the Airplane Flight
Manual.
(c)
Aircraft certificated after August 29,
1959
(SR 422B). No person may operate
a turbine engine powered airplane
along an intended route unless he com-
plies with either of the following:
(1) There is no place along the in-
tended track that is more than 90 min-
utes (with all engines operating at
cruising power) from an airport that
meets the requirements of § 121.197.
(2) Its weight, according to the two-
engine inoperative, en route, net flight
path data in the Airplane Flight Man-
ual, allows the airplane to fly from the
point where the two engines are as-
sumed to fail simultaneously to an air-
port that meets the requirements of
§ 121.197, with the net flight path (con-
sidering the ambient temperatures an-
ticipated along the track) clearing
vertically by at least 2,000 feet all ter-
rain and obstructions within five stat-
ute miles (4.34 nautical miles) on each
side of the intended track. For the pur-
poses of this subparagraph, it is as-
sumed that—
(i) The two engines fail at the most
critical point en route;
(ii) The net flight path has a positive
slope at 1,500 feet above the airport
where the landing is assumed to be
made after the engines fail;
(iii) Fuel jettisoning will be approved
if the certificate holder shows that the
crew is properly instructed, that the
training program is adequate, and that
all other precautions are taken to en-
sure a safe procedure;
(iv) The airplane’s weight at the
point where the two engines are as-
sumed to fail provides enough fuel to
continue to the airport, to arrive at an
altitude of at least 1,500 feet directly
over the airport, and thereafter to fly
for 15 minutes at cruise power or
thrust, or both; and
(v) The consumption of fuel and oil
after the engine failure is the same as
the consumption that is allowed for in
the net flight path data in the Airplane
Flight Manual.
§ 121.195 Airplanes: Turbine engine
powered: Landing limitations: Des-
tination airports.
(a) No person operating a turbine en-
gine powered airplane may take off
that airplane at such a weight that (al-
lowing for normal consumption of fuel
and oil in flight to the destination or
alternate airport) the weight of the air-
plane on arrival would exceed the land-
ing weight set forth in the Airplane
Flight Manual for the elevation of the
destination or alternate airport and
the ambient temperature anticipated
at the time of landing.
(b) Except as provided in paragraph
(c), (d), or (e) of this section, no person
operating a turbine engine powered air-
plane may take off that airplane unless
its weight on arrival, allowing for nor-
mal consumption of fuel and oil in
flight (in accordance with the landing
distance set forth in the Airplane
Flight Manual for the elevation of the
destination airport and the wind condi-
tions anticipated there at the time of
landing), would allow a full stop land-
ing at the intended destination airport
within 60 percent of the effective
length of each runway described below
from a point 50 feet above the intersec-
tion of the obstruction clearance plane
