Section 25.1015 14 CFR Ch. I (1-1-19 Edition) must be shown to be suitable for the particular application. [Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-19, 33 FR 15410, Oct. 17, 1968; Amdt. 25-23, 35 FR 5677, Apr. 8, 1970; Amdt. 25-36, 39 FR 35460, Oct. 1, 1974; Amdt. 25-57, 49 FR 6848, Feb. 23, 1984; Amdt. 25-72, 55 FR 29785, July 20, 1990] Section 25.1015 Oil tank tests. Each oil tank must be designed and installed so that - (a) It can withstand, without failure, each vibration, inertia, and fluid load that it may be subjected to in operation; and (b) It meets the provisions of Section 25.965, except - (1) The test pressure - (i) For pressurized tanks used with a turbine engine, may not be less than 5 p.s.i. plus the maximum operating pressure of the tank instead of the pressure specified in Section 25.965(a); and (ii) For all other tanks may not be less than 5 p.s.i. instead of the pressure specified in Section 25.965(a); and (2) The test fluid must be oil at 250 SectionF. instead of the fluid specified in Section 25.965(c). [Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as amended by Amdt. 25-36, 39 FR 35461, Oct. 1, 1974] Section 25.1017 Oil lines and fittings. (a) Each oil line must meet the requirements of Section 25.993 and each oil line and fitting in any designated fire zone must meet the requirements of Section 25.1183. (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 does not constitute a fire hazard if foaming occurs or causes emitted oil to strike the pilot-s windshield; and (3) The breather does not discharge into the engine air induction system. spaschal on DSK3GDR082PROD with CFR Section 25.1019 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 an indicator that will 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 25.1305(c)(7). (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. 25-36, 39 FR 35461, Oct. 1, 1974, as amended by Amdt. 25-57, 49 FR 6848, Feb. 23, 1984] Section 25.1021 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. 25-57, 49 FR 6848, Feb. 23, 1984] 324 VerDate Sep<11>2014 12:50 Apr 30, 2019 Jkt 247046 PO 00000 Frm 00334 Fmt 8010 Sfmt 8010 Y:\SGML\247046.XXX 247046