Section 29.1015
Section 29.1015

14 CFR Ch. I (1-1-19 Edition)
Oil tank tests.

Each oil tank must be designed and
installed so that - 
(a) It can withstand, without failure,
any vibration, inertia, and fluid loads
to which it may be subjected in operation; and
(b) It meets the requirements of
Section 29.965, except that instead of the pressure specified in Section 29.965(b) - 
(1) For pressurized tanks used with a
turbine engine, the test pressure may
not be less than 5 p.s.i. plus the maximum operating pressure of the tank;
and
(2) For all other tanks, the test pressure may not be less than 5 p.s.i.
[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as
amended by Amdt. 29-10, 39 FR 35462, Oct. 1,
1974]

Section 29.1017

Oil lines and fittings.

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(a) Each oil line must meet the requirements of Section 29.993.
(b) Breather lines must be arranged
so that - 
(1) Condensed water vapor that might
freeze and obstruct the line cannot accumulate at any point;
(2) The breather discharge will not
constitute a fire hazard if foaming occurs, or cause emitted oil to strike the
pilot-s windshield; and
(3) The breather does not discharge
into the engine air induction system.
Section 29.1019 Oil strainer or filter.
(a) Each turbine engine installation
must incorporate an oil strainer or filter through which all of the engine oil
flows and which meets the following requirements:
(1) Each oil strainer or filter that has
a bypass must be constructed and installed so that oil will flow at the normal rate through the rest of the system with the strainer or filter completely blocked.
(2) The oil strainer or filter must
have the capacity (with respect to operating limitations established for the
engine) to ensure that engine oil system functioning is not impaired when
the oil is contaminated to a degree
(with respect to particle size and density) that is greater than that established for the engine under Part 33 of
this chapter.

(3) The oil strainer or filter, unless it
is installed at an oil tank outlet, must
incorporate a means to indicate contamination before it reaches the capacity established in accordance with
paragraph (a)(2) of this section.
(4) The bypass of a strainer or filter
must be constructed and installed so
that the release of collected contaminants is minimized by appropriate location of the bypass to ensure that collected contaminants are not in the bypass flow path.
(5) An oil strainer or filter that has
no bypass, except one that is installed
at an oil tank outlet, must have a
means to connect it to the warning
system required in Section 29.1305(a)(18).
(b) Each oil strainer or filter in a
powerplant installation using reciprocating engines must be constructed and
installed so that oil will flow at the
normal rate through the rest of the
system with the strainer or filter element completely blocked.
[Amdt. 29-10, 39 FR 35463, Oct. 1, 1974, as
amended by Amdt. 29-22, 49 FR 6850, Feb. 23,
1984; Amdt. 29-26, 53 FR 34218, Sept. 2, 1988]

Section 29.1021 Oil system drains.
A drain (or drains) must be provided
to allow safe drainage of the oil system. Each drain must - 
(a) Be accessible; and
(b) Have manual or automatic means
for positive locking in the closed position.
[Amdt. 29-22, 49 FR 6850, Feb. 23, 1984]

Section 29.1023 Oil radiators.
(a) Each oil radiator must be able to
withstand any vibration, inertia, and
oil pressure loads to which it would be
subjected in operation.
(b) Each oil radiator air duct must be
located, or equipped, so that, in case of
fire, and with the airflow as it would be
with and without the engine operating,
flames cannot directly strike the radiator.
Section 29.1025 Oil valves.
(a) Each oil shutoff must meet the requirements of Section 29.1189.
(b) The closing of oil shutoffs may
not prevent autorotation.
(c) Each oil valve must have positive
stops or suitable index provisions in

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