Advisory Circulars from 1985

This advisory circular (AC) describes a method of demonstrating compliance with the requirements of the Federal Aviation Regulations (FAR) concerning the ingestion of water from the runway/taxiway surface into the airspeed system, the engine, and essential auxiliary power unit (APU)l air inlet ducts of turbine engine powered airplanes. Like all advisory circular material, it is not mandatory and does not constitute a regulation. It is for guidance purposes and to provide an example of a method which has been found acceptable