Text in force at CAR3R-8: from CAR3R-0, effective 15 May 1956. OCR text
(a) Eugine breather lines shall be so arranged that condensed water vapor which might freeze and obstruct the line cannot accumulate at any point. Breathers shall discharge in a location which will not constitute a fire hazard in case foaming occurs and so that oil emitted from the line will not impinge upon the pilot’s windshield. The breather shall not discharge into the engine air induction. system.
(b) Category A. In the case of acrobatic type airplanes, provision shall be made to prevent excessive loss of oi] from the breather during acrobatic maneuvers including short periods of inverted flight.