350
14 CFR Ch. I (1–1–19 Edition)
§ 25.1362
(b) Burns. The temperature of any
part that may be handled by a crew-
member during normal operations
must not cause dangerous inadvertent
movement by the crewmember or in-
jury to the crewmember.
[Amdt. 25–123, 72 FR 63406, Nov. 8, 2007]
§ 25.1362
Electrical supplies for emer-
gency conditions.
A suitable electrical supply must be
provided to those services required for
emergency procedures after an emer-
gency landing or ditching. The circuits
for these services must be designed,
protected, and installed so that the
risk of the services being rendered inef-
fective under these emergency condi-
tions is minimized.
[Amdt. 25–123, 72 FR 63406, Nov. 8, 2007]
§ 25.1363
Electrical system tests.
(a) When laboratory tests of the elec-
trical system are conducted—
(1) The tests must be performed on a
mock-up using the same generating
equipment used in the airplane;
(2) The equipment must simulate the
electrical characteristics of the dis-
tribution wiring and connected loads to
the extent necessary for valid test re-
sults; and
(3) Laboratory generator drives must
simulate the actual prime movers on
the airplane with respect to their reac-
tion to generator loading, including
loading due to faults.
(b) For each flight condition that
cannot be simulated adequately in the
laboratory or by ground tests on the
airplane, flight tests must be made.
§ 25.1365
Electrical appliances, motors,
and transformers.
(a) Domestic appliances must be de-
signed and installed so that in the
event of failures of the electrical sup-
ply or control system, the require-
ments of § 25.1309(b), (c), and (d) will be
satisfied. Domestic appliances are
items such as cooktops, ovens, coffee
makers, water heaters, refrigerators,
and toilet flush systems that are
placed on the airplane to provide serv-
ice amenities to passengers.
(b) Galleys and cooking appliances
must be installed in a way that mini-
mizes risk of overheat or fire.
(c) Domestic appliances, particularly
those in galley areas, must be installed
or protected so as to prevent damage or
contamination of other equipment or
systems from fluids or vapors which
may be present during normal oper-
ation or as a result of spillage, if such
damage or contamination could create
a hazardous condition.
(d) Unless compliance with § 25.1309(b)
is provided by the circuit protective
device required by § 25.1357(a), electric
motors and transformers, including
those installed in domestic systems,
must have a suitable thermal protec-
tion device to prevent overheating
under normal operation and failure
conditions, if overheating could create
a smoke or fire hazard.
[Amdt. 25–123, 72 FR 63406, Nov. 8, 2007]
L
IGHTS
§ 25.1381
Instrument lights.
(a) The instrument lights must—
(1) Provide sufficient illumination to
make each instrument, switch and
other device necessary for safe oper-
ation easily readable unless sufficient
illumination is available from another
source; and
(2) Be installed so that—
(i) Their direct rays are shielded from
the pilot’s eyes; and
(ii) No objectionable reflections are
visible to the pilot.
(b) Unless undimmed instrument
lights are satisfactory under each ex-
pected flight condition, there must be a
means to control the intensity of illu-
mination.
[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as
amended by Amdt. 25–72, 55 FR 29785, July 20,
1990]
§ 25.1383
Landing lights.
(a) Each landing light must be ap-
proved, and must be installed so that—
(1) No objectionable glare is visible
to the pilot;
(2) The pilot is not adversely affected
by halation; and
(3) It provides enough light for night
landing.
(b) Except when one switch is used
for the lights of a multiple light instal-
lation at one location, there must be a
separate switch for each light.
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