(a) Each oil line must meet the requirements of §
25.993 and each oil line and fitting in any designated fire zone must meet the requirements of §
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.
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