CS 22.1017 Oil lines and fittings
ED Decision 2003/13/RM
(a) Oil lines must comply with CS 22.993 and each oil line and fitting must be made of fireproof material.
(b) Breather lines. Breather lines must be arranged so that:
(1) condensed water vapour or oil 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 wind shields;
(3) the breather does not discharge into the engine air induction system;
(4) if the engine is retractable, there must be no discharge of oil from the breather line when the engine is completely retracted.
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